Appeals in Criminal Cases

Appeals in Criminal Cases

A criminal conviction does not necessarily mark the end of a criminal case. After judgment is entered, a defendant may have the right to ask a higher court to review the proceedings for legal error. This process is known as a criminal appeal.

An appeal is fundamentally different from a new criminal trial. The appellate court generally does not hear the witnesses again, reconsider the entire evidentiary record from the beginning, or decide simply whether it agrees with the jury’s conclusion. Instead, the appellate court reviews the existing record to determine whether the trial court committed a legally significant error and whether that error requires a remedy.

In the federal system, appeals from federal district courts ordinarily go to one of the thirteen federal courts of appeals: the twelve regional circuit courts or the United States Court of Appeals for the Federal Circuit in the limited categories within that court’s jurisdiction. The Supreme Court of the United States may subsequently review decisions of the federal courts of appeals, but Supreme Court review is generally discretionary rather than an automatic second appeal.

Cornell Law School’s Legal Information Institute explains that appellate jurisdiction is the authority of a higher court to review decisions of a lower court. Federal circuit courts exercise appellate jurisdiction over federal district courts, while the Supreme Court has appellate jurisdiction over qualifying decisions of the lower federal courts. Cornell’s explanation of appellate jurisdiction

The basic appellate sequence can be represented as:

Trial → Verdict → Post-Trial Motions → Judgment → Notice of Appeal → Appellate Briefing → Oral Argument, if granted → Appellate Decision → Possible Further Review

The actual sequence can differ depending on the case. Some issues can be appealed before the criminal case has completely ended, while some claims cannot be effectively litigated on direct appeal and must instead be raised through a later collateral proceeding.

Understanding criminal appeals therefore requires more than knowing that a defendant “can appeal.” The important questions are:

• What decision can be appealed?
• Who has the right to appeal?
• When must the notice of appeal be filed?
• What issues can the appellate court review?
• What standard of review applies?
• What happens to the trial record?
• What must the appellate briefs contain?
• What happens at oral argument?
• What can the appellate court do if it finds an error?
• What happens after remand?
• When can the case reach the Supreme Court?

These questions define the structure of appellate review in criminal cases.

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1. What Is a Criminal Appeal?

A criminal appeal is a request for a higher court to review a lower court’s decision for legal error or another recognized basis for appellate relief.

The party bringing the appeal is generally called the appellant.

The opposing party is generally called the appellee.

In a federal criminal case, the defendant ordinarily appeals from the federal district court to the appropriate federal court of appeals.

The government can also appeal certain rulings in criminal cases, but its appellate rights are more restricted than those of a defendant. Federal law places specific limits on government appeals because permitting the prosecution to repeatedly challenge acquittals or other favorable decisions could conflict with constitutional protections such as the Double Jeopardy Clause.

An appeal is therefore not simply a second opportunity to argue that the defendant is innocent.

It is a structured form of judicial review.

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2. Appeal Versus New Trial

One of the most important distinctions in criminal procedure is the difference between an appeal and a new trial.

A new trial asks the trial court to allow the case to be tried again.

An appeal asks a higher court to review what happened in the original proceeding.

For example, suppose a defendant is convicted after a jury trial and argues that the judge gave an incorrect instruction concerning an essential element of the offense.

The defendant might first raise the issue through an appropriate post-trial motion.

If the trial court denies relief, the defendant may raise the legal issue on appeal.

The appellate court normally does not summon the original witnesses and conduct another jury trial. Instead, it reviews the record to determine whether the instruction was legally erroneous and, if so, whether the error requires reversal or another remedy.

This distinction explains why appellate litigation is heavily focused on:

• the trial record;
• legal authorities;
• standards of review;
• preservation of objections;
• written briefs; and
• the precise ruling being challenged.

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3. Direct Appeal and Collateral Review

Criminal defendants may encounter two broad forms of judicial review.

Direct appeal

A direct appeal ordinarily challenges errors that occurred during the criminal prosecution and appear in the trial record.

Examples include:

• improper admission of evidence;
• improper exclusion of evidence;
• erroneous jury instructions;
• insufficient evidence;
• constitutional violations;
• sentencing errors;
• prosecutorial misconduct;
• improper jury selection; and
• certain errors involving the defendant’s rights.

Collateral review

Collateral proceedings are different.

They generally occur after the direct-review process and may involve claims that cannot adequately be resolved from the trial record alone.

A classic federal example is a petition for habeas corpus under 28 U.S.C. § 2255 by a federal prisoner challenging the legality of the conviction or sentence.

Claims of ineffective assistance of counsel frequently arise in collateral proceedings because resolving them may require evidence outside the trial record, such as communications between counsel and the defendant or explanations of counsel’s strategic decisions.

This distinction is important:

Not every constitutional claim belongs on direct appeal, and not every claim that a defendant calls an “appeal” is technically a direct appeal.

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4. Who Has the Right to Appeal?

The right to appeal depends upon the nature of the decision and the governing law.

A defendant who has been convicted generally has a statutory or constitutional route to appellate review of qualifying final decisions.

Federal Rule of Criminal Procedure 32 requires the district court, after sentencing, to advise a convicted defendant of the right to appeal the conviction and any applicable right to appeal the sentence. If the defendant requests it, the clerk must prepare and file the notice of appeal on the defendant’s behalf.

The government, however, does not possess an unlimited right to appeal.

Federal statutes identify circumstances in which the United States may appeal certain criminal rulings. The government generally cannot appeal an acquittal simply because it disagrees with the jury’s decision.

The constitutional prohibition against double jeopardy is an important reason for this distinction.

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5. The Final Judgment Requirement

Appellate courts generally review final judgments or other decisions that are appealable under a specific statutory or procedural authorization.

In an ordinary criminal prosecution, the final judgment typically follows:

1. the verdict or finding of guilt;
2. sentencing; and
3. entry of the judgment of conviction.

Federal Rule of Criminal Procedure 32 requires the judgment of conviction to set forth the plea, verdict or findings, adjudication, and sentence. The judge signs the judgment and the clerk enters it.

The judgment therefore plays an important role in determining when the ordinary appellate period begins.

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6. The Notice of Appeal

A criminal appeal ordinarily begins with the filing of a notice of appeal.

The notice is not the appellate brief.

It is the procedural document that initiates the appeal.

In a federal criminal case, the defendant generally files the notice of appeal in the district court rather than directly in the court of appeals.

Federal Rule of Appellate Procedure 4 provides that a defendant’s notice of appeal must generally be filed within 14 days after the later of:

• entry of the judgment or order being appealed; or
• filing of the government’s notice of appeal.

The government generally has 30 days under the rule when it is entitled to appeal.

These deadlines are extremely important.

Missing an appellate deadline can jeopardize the right to appellate review.

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7. The Notice of Appeal Is Not the Brief

A common misunderstanding is that the notice of appeal must contain the full legal argument.

Usually, it does not.

The notice identifies the decision being appealed and initiates appellate jurisdiction.

The detailed legal arguments ordinarily appear later in the appellate briefs.

This creates a sequence such as:

Judgment → Notice of Appeal → Record → Appellate Briefs → Oral Argument, if applicable → Decision

The notice therefore performs a procedural function, while the brief performs an argumentative function.

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8. Filing the Notice in the Wrong Court

The ordinary federal procedure requires the notice of appeal to be filed with the district court clerk.

If a notice of appeal in a criminal case is mistakenly filed in the court of appeals, Federal Rule of Appellate Procedure 4 provides a mechanism under which the appellate clerk forwards it to the district clerk, with the filing treated according to the rule.

This does not mean that filing requirements should be treated casually.

The safe approach is to comply precisely with the applicable appellate rules and local rules.

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9. Post-Trial Motions and the Appeal Deadline

Post-trial motions can affect the calculation of the appellate deadline.

This is particularly important following the preceding article on Post-Trial Motions in Criminal Cases.

Federal Rule of Appellate Procedure 4 provides special treatment for certain timely criminal post-trial motions.

For example, when a defendant timely files specified motions under the Federal Rules of Criminal Procedure, the period for appealing the judgment of conviction runs from the relevant later order disposing of the remaining motion or from the judgment, whichever is later under the rule.

This means that a defendant should not simply count fourteen days from the jury’s verdict.

The relevant date may instead depend on:

• sentencing;
• entry of judgment;
• a timely Rule 29 motion;
• a timely Rule 33 motion;
• another qualifying post-trial motion; or
• the order resolving the final qualifying motion.

The interaction between post-trial motions and appellate deadlines is therefore an important part of criminal appellate procedure.

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10. What Does the Appellate Court Review?

The appellate court reviews the issues properly presented to it under the applicable rules and standards.

It generally does not reconsider every event that occurred during the criminal case.

The appellant must identify the particular legal errors being challenged.

Examples include:

• an unconstitutional search;
• improper admission of evidence;
• improper exclusion of defense evidence;
• an erroneous jury instruction;
• insufficient evidence;
• prosecutorial misconduct;
• improper juror selection;
• violation of the right to counsel;
• violation of the defendant’s confrontation rights;
• improper sentencing;
• an unlawful sentence; or
• another recognized legal error.

The appeal therefore involves issue selection.

The appellant cannot simply ask the court to “review the whole trial” without identifying the legal grounds for relief.

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11. The Record on Appeal

Appellate courts generally decide appeals based on the record created in the lower court.

The record may include:

• pleadings;
• motions;
• exhibits;
• transcripts;
• orders;
• jury instructions;
• verdict forms;
• sentencing materials;
• the judgment;
• post-trial motions; and
• other materials designated under the applicable appellate rules.

The appellate court generally does not receive a new collection of evidence from the parties simply because they are now on appeal.

This principle is sometimes expressed through the idea that an appellate court reviews the case on the record.

The record is therefore the foundation of appellate review.

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12. Why the Trial Record Matters

The importance of the trial record becomes obvious when considering an evidentiary challenge.

Suppose the defendant argues:

The trial judge improperly excluded a defense witness.

The appellate court needs to know:

• What did the defense ask the witness to testify about?
• What objection did the prosecution make?
• What ruling did the judge issue?
• What reason did the judge give?
• What evidence was already before the jury?
• Did defense counsel make an offer of proof?
• Did the exclusion affect a material issue?

Without a developed record, the appellate court may be unable to determine whether reversible error occurred.

This is one reason lawyers must make appropriate objections and preserve issues during trial.

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13. Preservation of Error

An important concept in appellate procedure is preservation of error.

Generally, a party should raise an objection in the trial court when the alleged error occurs.

For example, if the prosecution offers evidence that the defense believes is inadmissible, defense counsel ordinarily should make an appropriate objection.

If the judge gives an allegedly erroneous jury instruction, counsel may need to object in the manner required by the applicable rules.

If an issue was never raised in the trial court, appellate review may become more difficult.

The appellate court may apply a more demanding standard, decline ordinary review, or review the issue only for a limited form of plain error if the governing rules permit it.

Preservation is therefore not merely procedural housekeeping.

It can directly affect whether an appellate argument succeeds.

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14. Plain Error Review

Federal criminal appellate procedure recognizes circumstances in which an appellate court may review an error even though the defendant did not properly preserve it in the trial court.

Federal Rule of Criminal Procedure 52(b) provides that a plain error affecting substantial rights may be considered even though it was not brought to the court’s attention. The rule is intentionally narrow.

The Supreme Court has developed a demanding framework for plain-error review.

Generally, the defendant must establish an error, that the error was plain, that it affected substantial rights, and that the error seriously affected the fairness, integrity, or public reputation of judicial proceedings under the applicable standard.

The practical lesson is straightforward:

Failing to object at trial can make an appellate challenge significantly harder.

It is therefore generally preferable to preserve an issue when the procedural rules provide an opportunity to do so.

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15. Standards of Review

One of the defining features of appellate litigation is the standard of review.

The appellate court does not review every issue in the same way.

Different questions receive different levels of appellate scrutiny.

The major standards include:

• de novo review;
• clear-error review;
• abuse-of-discretion review; and
• plain-error review in appropriate circumstances.

Understanding the standard can be just as important as identifying the underlying error.

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16. De Novo Review

De novo means “anew.”

When an appellate court reviews a purely legal question de novo, it gives no special deference to the trial court’s legal conclusion.

The appellate court independently determines the correct legal rule and applies it to the relevant facts.

Examples can include certain questions involving:

• statutory interpretation;
• constitutional interpretation;
• legal sufficiency;
• interpretation of procedural rules; and
• certain legal conclusions concerning evidence.

De novo review does not mean the appellate court conducts a new trial.

It means the appellate court independently reviews the legal question.

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17. Clear-Error Review

Factual findings are ordinarily reviewed under a more deferential standard.

Under the clear-error standard, an appellate court does not simply substitute its preferred factual conclusion for that of the trial judge.

The trial court had the opportunity to hear witnesses, observe testimony, examine evidence, and evaluate the circumstances firsthand.

Federal sentencing law, for example, expressly provides that appellate courts give due regard to the district court’s opportunity to judge witness credibility and accept factual findings unless clearly erroneous.

This does not make factual findings immune from review.

A clearly erroneous finding can be reversed.

But the threshold is higher than simply showing that the appellate judges might have reached a different conclusion.

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18. Abuse of Discretion

Some trial-court decisions are reviewed for abuse of discretion.

This standard commonly applies to discretionary decisions such as certain evidentiary rulings, procedural decisions, scheduling matters, and other judgments entrusted to the trial court.

The appellate court asks whether the trial judge acted outside the range of permissible choices or applied an incorrect legal principle.

An abuse-of-discretion standard recognizes that trial judges must make many practical decisions during litigation and that appellate courts should not automatically substitute their judgment for every discretionary decision.

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19. Different Issues Can Receive Different Standards in One Appeal

A single criminal appeal may involve several standards of review.

For example, a defendant might argue:

1. the trial court interpreted a statute incorrectly — de novo;
2. the court made a factual finding concerning sentencing — clear error;
3. the court made a discretionary evidentiary ruling — abuse of discretion; and
4. the defendant failed to object to another alleged error — potentially plain error.

This is why appellate briefs must identify the applicable standard of review for each issue.

Federal Rule of Appellate Procedure 28 specifically requires the appellant’s brief to state the applicable standard of review for each issue.

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20. The Appellant’s Brief

The appellate brief is the principal written argument in the appeal.

Federal Rule of Appellate Procedure 28 requires the appellant’s brief to contain several components, including:

• a jurisdictional statement;
• a statement of the issues presented;
• a statement of the case;
• a summary of the argument;
• the substantive argument;
• citations to authorities;
• citations to the record; and
• a conclusion stating the precise relief sought.

The brief therefore has a structured architecture.

A strong appellate argument does not merely describe everything that happened at trial.

It identifies the legal issue, states the governing rule, explains how the trial court violated that rule, demonstrates why the error matters, and explains what remedy the appellate court should provide.

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21. The Statement of the Issues

The issues presented identify the questions the appellate court is being asked to decide.

For example:

Whether the district court violated the defendant’s Sixth Amendment right to confront witnesses by admitting testimonial statements from an unavailable witness without a prior opportunity for cross-examination.

Or:

Whether the district court erred by denying the defendant’s motion for judgment of acquittal where the government failed to present sufficient evidence of an essential element of the charged offense.

The issue should be precise.

An appellate court cannot effectively decide an argument that is framed merely as:

“The trial was unfair.”

The appellate question needs to identify the legal proposition being challenged.

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22. The Statement of the Case

The statement of the case gives the appellate court the relevant procedural and factual background.

Federal Rule of Appellate Procedure 28 requires the appellant’s brief to provide a concise statement of the case containing the facts relevant to the issues, the procedural history necessary to understand the appeal, and the rulings being challenged.

A good statement is selective.

The appellate court does not need every fact in the criminal prosecution.

It needs the facts that matter to the issues presented.

This is particularly important in cases with lengthy trials and thousands of pages of evidence.

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23. The Argument Section

The argument section is the core of the appellate brief.

For each issue, the appellant generally must explain:

1. what the trial court did;
2. why the ruling was legally wrong;
3. what authority establishes the correct legal rule;
4. where the relevant facts appear in the record;
5. why the error was significant; and
6. what remedy should follow.

Federal Rule of Appellate Procedure 28 requires the appellant’s contentions and reasons to be supported by citations to authorities and relevant portions of the record.

An appellate argument therefore connects law + facts + record + remedy.

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24. The Government’s Brief

The government ordinarily responds to the defendant’s appellate arguments.

The government’s brief may argue that:

• the trial court correctly applied the law;
• the defendant failed to preserve the issue;
• the alleged error did not occur;
• the evidence was sufficient;
• any error was harmless;
• the defendant lacks standing;
• the issue is procedurally barred;
• the sentence was lawful; or
• the requested remedy is inappropriate.

The government’s brief may also defend the judgment on alternative grounds where permitted.

Federal Rule of Appellate Procedure 28 establishes the structure of the appellee’s brief.

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25. The Reply Brief

The appellant may generally file a reply brief after the government’s response.

The reply is not supposed to be a complete repetition of the opening brief.

Its primary function is to respond to arguments made by the appellee.

For example, if the government argues that the defendant waived an objection, the reply may address why the issue was properly preserved.

If the government argues that an error was harmless, the reply may explain why the error affected the verdict.

Federal Rule of Appellate Procedure 28 permits an appellant’s reply brief and generally limits additional briefing unless the appellate court permits it.

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26. The Appellate Record and Record Citations

Appellate arguments must be tied to the record.

A brief might state:

The defendant objected immediately after the government introduced the statement. [record citation]

The citation allows the appellate judges to locate the underlying event.

This is essential because appellate courts generally decide cases based on the record rather than on unsupported factual assertions.

Federal Rule of Appellate Procedure 28 expressly regulates references to the record and requires appropriate citations.

A persuasive appellate brief therefore does not simply say what happened.

It shows the court where the record proves that it happened.

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27. Oral Argument

After briefing, the appellate court may schedule oral argument.

Oral argument gives the judges an opportunity to question the lawyers directly.

The lawyers may be asked:

• What exactly is the legal error?
• Where was the issue preserved?
• What authority supports your position?
• What standard of review applies?
• Why was the error prejudicial?
• What would happen if we accepted your argument?
• What precise remedy are you requesting?

Oral argument is therefore not merely an opportunity to read the brief aloud.

The judges have already reviewed the written submissions and may use oral argument to test the strength and limits of the parties’ positions.

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28. Not Every Appeal Has Oral Argument

An appellate court does not necessarily hold oral argument in every case.

Courts of appeals can decide some appeals based entirely on the written submissions and record.

Oral argument may be unnecessary when the issues are adequately presented in the briefs or when the court determines that argument would not materially assist its decision.

This does not make briefing unimportant.

In many appeals, the written briefs remain the principal vehicle through which the court understands the legal issues.

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29. The Role of the Appellate Judges

Federal courts of appeals ordinarily decide cases through panels of judges rather than a single judge.

A typical panel consists of three judges.

The panel examines:

• the record;
• the parties’ briefs;
• applicable statutes;
• constitutional provisions;
• precedent;
• procedural rules; and
• oral argument where applicable.

The judges are not simply deciding whether they personally agree with the trial judge.

They are exercising appellate jurisdiction under defined legal standards.

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30. What Happens to the Jury’s Verdict?

The jury’s factual determination receives significant respect on appeal.

An appellate court generally does not simply reweigh competing witness testimony and decide which witness it would have believed.

For example, suppose the prosecution presented two witnesses who identified the defendant while the defense presented three witnesses who denied the defendant’s involvement.

If the issue is simply which witnesses were more credible, appellate review is ordinarily highly deferential to the jury’s determination.

But if the prosecution failed to present legally sufficient evidence of an essential element, the issue can be reviewed under the appropriate legal standard.

This distinction is central to criminal appeals.

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31. Appeals Based on Insufficient Evidence

A defendant may argue on appeal that the evidence was insufficient to support the conviction.

This is closely related to the Rule 29 judgment-of-acquittal procedure discussed in the previous article.

The appellate court asks whether, viewing the evidence under the applicable standard, a rational factfinder could have found the essential elements of the offense beyond a reasonable doubt.

The court does not ordinarily ask whether it personally would have voted to convict.

This preserves the jury’s role while ensuring that a conviction cannot stand where the prosecution’s evidence was legally insufficient.

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32. Appeals Based on Evidentiary Errors

A defendant may argue that the trial court improperly admitted or excluded evidence.

Examples include:

• hearsay;
• character evidence;
• expert testimony;
• privileged communications;
• illegally obtained evidence;
• improperly authenticated documents;
• unfairly prejudicial evidence; or
• evidence excluded despite being legally admissible.

The standard of review depends on the type of evidentiary decision involved.

The appellant must also demonstrate that the error matters.

An appellate court may find that a trial judge technically erred but that the error was harmless because it did not affect the defendant’s substantial rights.

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33. Harmless Error

Not every legal error requires reversal.

The doctrine of harmless error reflects the principle that a conviction should not automatically be overturned for every mistake made during a complicated criminal trial.

The appellate court may ask whether the error affected the outcome or otherwise caused legally significant prejudice under the applicable standard.

For example, suppose a judge improperly admitted a minor piece of evidence, but overwhelming independent evidence established the defendant’s guilt.

The appellate court might conclude that the error was harmless.

By contrast, an error that undermines a fundamental aspect of the trial may require a different analysis.

The precise harmless-error standard depends on the nature of the alleged violation.

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34. Constitutional Errors

Constitutional errors can receive particularly careful appellate review.

Potential constitutional claims include violations of:

• the Fourth Amendment;
• the Fifth Amendment;
• the Sixth Amendment;
• the Eighth Amendment;
• due process;
• equal protection; and
• other constitutional protections.

Examples include:

• unlawful searches;
• coerced confessions;
• denial of counsel;
• confrontation violations;
• denial of compulsory process;
• unconstitutional jury procedures;
• improper prosecutorial conduct; and
• unconstitutional sentencing.

The fact that an issue is constitutional does not automatically mean that the defendant wins on appeal.

The appellate court still applies the appropriate legal framework and determines whether the alleged constitutional violation occurred and what consequence follows.

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35. Appeals Concerning the Right to Counsel

The Sixth Amendment right to counsel can generate several types of appellate issues.

A defendant may challenge:

• denial of counsel;
• interference with the attorney-client relationship;
• denial of counsel at a critical stage;
• conflicts of interest;
• ineffective assistance; or
• restrictions on the defendant’s right to represent himself.

Some claims can be decided directly from the trial record.

Others are better suited to collateral proceedings.

Ineffective assistance of counsel is an important example.

Although a defendant may sometimes raise ineffective-assistance claims on direct appeal, appellate courts frequently decline to decide such claims when the existing record is insufficient to evaluate counsel’s performance and strategic decisions.

A later collateral proceeding may permit the development of evidence outside the original trial record.

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36. Sentencing Appeals

Criminal appeals are not limited to convictions.

A defendant may also challenge the sentence.

Federal law specifically governs appellate review of federal criminal sentences.

Under 18 U.S.C. § 3742, a defendant may appeal a qualifying final sentence on grounds including that it was imposed in violation of law or resulted from an incorrect application of the sentencing guidelines. The statute also establishes circumstances concerning sentences outside applicable guideline ranges.

The government also has specified statutory authority to appeal certain sentences.

Sentencing appeals therefore involve a separate body of law from appeals challenging the underlying conviction.

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37. Procedural and Substantive Sentencing Errors

A sentencing appeal may challenge either the procedure used to impose the sentence or the substance of the sentence.

A procedural challenge might argue that the judge:

• incorrectly calculated the guideline range;
• relied on clearly erroneous facts;
• failed to consider required statutory factors;
• treated advisory Guidelines as mandatory;
• failed to explain the sentence adequately; or
• applied the wrong legal standard.

A substantive challenge may argue that the sentence itself is unreasonable in light of the governing sentencing principles.

The Supreme Court’s decision in United States v. Booker is particularly important because it established the modern advisory nature of the federal Sentencing Guidelines and the appellate review framework for federal sentencing.

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38. Appeals by the Government

The government may appeal certain rulings, but its rights are not identical to those of a defendant.

This limitation is especially important after acquittal.

The Double Jeopardy Clause generally prevents the government from appealing an acquittal in order to obtain another opportunity to convict the defendant.

Congress has nevertheless authorized government appeals in specified circumstances.

For example, federal statutes permit government appeals from certain orders suppressing evidence or dismissing charges before trial, subject to statutory requirements.

Government appeals of sentences are also governed by specific statutory rules.

The principle is therefore:

The government has appellate rights, but those rights are defined by statute and constrained by constitutional protections.

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39. Interlocutory Appeals in Criminal Cases

Not every criminal appeal waits until the end of the case.

An interlocutory appeal concerns a ruling made before final judgment.

Criminal interlocutory appeals are more limited than ordinary appeals because allowing unrestricted appeals of every pretrial ruling could cause criminal prosecutions to become fragmented and indefinitely delayed.

Nevertheless, federal law provides specific mechanisms for certain interlocutory government appeals and other extraordinary forms of appellate review.

For example, the government may in specified circumstances appeal a district court order suppressing evidence.

The precise availability of interlocutory review depends on the statute, procedural rule, and type of ruling involved.

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40. Appeals From Suppression Rulings

Suppression issues illustrate the unusual structure of criminal appeals.

Suppose the defendant files a motion to suppress evidence obtained during a search.

The district court grants the motion.

The government may, in circumstances authorized by federal law, seek an interlocutory appeal rather than waiting until the entire criminal case ends.

This can be important because the suppression ruling may effectively determine whether the prosecution can proceed.

If the government appeals and the appellate court reverses the suppression ruling, the criminal prosecution may continue.

If the appellate court affirms the suppression ruling, the government may face significant difficulties in proceeding with the prosecution.

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41. What Can an Appellate Court Do?

An appellate court has several possible outcomes.

It may:

• affirm the lower court’s decision;
• reverse the decision;
• vacate the judgment or sentence;
• remand the case for further proceedings;
• modify certain aspects of the judgment where authorized; or
• issue another appropriate disposition.

The result depends on the nature of the error.

A successful appeal therefore does not always mean that the defendant walks out of court with all charges dismissed.

The remedy may instead be a new trial, resentencing, reconsideration of a particular issue, or another limited form of relief.

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42. Affirmance

If the appellate court concludes that the trial court committed no reversible error, it may affirm.

An affirmance means that the challenged judgment or ruling remains in effect.

The court may affirm:

• the conviction;
• the sentence;
• a particular pretrial ruling; or
• another appealable order.

An affirmance can also rest on a different legal rationale from the one used by the trial court, depending on the circumstances and the appellate court’s authority.

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43. Reversal

A reversal means that the appellate court determines that the lower court’s decision cannot stand in its existing form.

But the consequences depend on what was reversed.

If the appellate court finds insufficient evidence supporting a conviction, the remedy can be fundamentally different from a reversal based on trial error.

For example:

• insufficient evidence may result in an acquittal;
• prejudicial trial error may result in a new trial;
• sentencing error may result in resentencing;
• an evidentiary error may result in reversal and remand for further proceedings.

The nature of the error therefore determines the appropriate remedy.

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44. Vacatur

To vacate means to set aside a judgment, order, or sentence.

Vacatur may be followed by a remand.

For example:

The sentence is vacated and the case is remanded for resentencing.

This does not necessarily mean that the underlying conviction has disappeared.

The appellate court may be setting aside only the sentence.

Similarly, an order may be vacated while the remainder of the case continues.

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45. Remand

A remand sends the case back to the lower court for further proceedings.

An appellate court may remand with specific instructions.

For example:

The sentence is vacated and the case is remanded for resentencing consistent with this opinion.

The district court must then follow the appellate court’s instructions.

The remand therefore creates a division of responsibility:

Appellate court: determines the legal error and establishes the governing appellate rule.

Trial court: conducts the further proceedings required by the appellate decision.

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46. New Trial After Appeal

An appellate court may determine that serious trial error requires a new trial.

For example, if the trial court committed prejudicial constitutional error, the appellate court may reverse the conviction and remand for a new trial.

The prosecution may then retry the defendant, subject to double-jeopardy limitations.

This is one of the most important differences between reversal based on trial error and reversal based on insufficient evidence.

If the evidence was legally insufficient, the constitutional protection against double jeopardy can prevent the government from simply retrying the defendant.

If the conviction is reversed because of trial error, a retrial may ordinarily be permitted.

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47. Resentencing After Appeal

A successful sentencing appeal can result in resentencing.

Suppose an appellate court determines that the district court incorrectly calculated the applicable federal sentencing range.

The appellate court may vacate the sentence and remand for a new sentencing proceeding.

Federal law provides a specific framework for sentencing following appellate remand.

The scope of resentencing depends on the appellate court’s mandate and the nature of the error.

A defendant therefore should not assume that a successful sentencing appeal automatically means a lower sentence.

The purpose of the remand is to correct the identified legal error.

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48. The Appellate Mandate

After an appellate court resolves an appeal, it eventually issues a formal mandate.

The mandate communicates the disposition of the appeal and returns authority to the lower court to carry out the appellate court’s decision.

The district court must follow the appellate court’s instructions.

This reflects the hierarchical structure of the federal judiciary.

A district court cannot ordinarily ignore a controlling instruction from the court of appeals reviewing its decision.

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49. Further Review by the Supreme Court

After a federal court of appeals issues its decision, a party may seek review by the Supreme Court of the United States.

This usually occurs through a petition for a writ of certiorari.

Unlike an ordinary appeal as of right, Supreme Court review is generally discretionary.

The Supreme Court selects a relatively small number of cases for review, often focusing on issues of substantial national importance, conflicts among lower courts, significant constitutional questions, or important questions of federal law.

Therefore:

District court → Court of appeals is ordinarily an appeal as of right for qualifying final decisions.

Court of appeals → Supreme Court generally requires discretionary Supreme Court review.

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50. Certiorari Is Not a Second Ordinary Appeal

The Supreme Court does not ordinarily function as a third trial court.

When a petition for certiorari is filed, the petitioner must identify a legal question worthy of Supreme Court review.

The Court does not have to explain why it denies a petition.

A denial of certiorari does not ordinarily mean that the Supreme Court agreed with the lower court’s reasoning.

It means only that the Court declined to exercise its discretionary jurisdiction.

This distinction is frequently misunderstood.

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51. Appeals in State Criminal Cases

State criminal appeals operate through state appellate systems rather than the federal courts of appeals.

Each state establishes its own judicial structure and appellate procedures.

A typical state system may include:

Trial court → Intermediate appellate court → State supreme court

But not every state has the same structure.

Some states have intermediate courts of appeal; some do not.

Some appeals are as of right, while further review by the state’s highest court may be discretionary.

Cornell’s Wex explains that state systems differ in their appellate structures and that states determine the scope of appellate jurisdiction through their own constitutions, statutes, and procedural rules.

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52. State Appeals and Federal Constitutional Claims

A defendant convicted in state court may raise federal constitutional issues through the state appellate system.

For example, a defendant might argue that the state prosecution violated:

• the Fourth Amendment;
• the Fifth Amendment;
• the Sixth Amendment;
• the Fourteenth Amendment; or
• another federal constitutional provision.

The state appellate courts can decide federal constitutional questions.

If the issue ultimately presents a qualifying federal question, the defendant may seek review by the United States Supreme Court.

This creates an important relationship between state and federal judicial systems.

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53. Federal Review of State Criminal Judgments

A state criminal conviction does not ordinarily go directly from a state trial court to a federal district court as an ordinary appeal.

The defendant generally must pursue available state appellate remedies first.

Federal habeas corpus may later provide a form of collateral review under federal law, subject to substantial statutory and procedural restrictions.

Federal habeas review is therefore not simply “another appeal.”

It is a distinct form of collateral review governed by statutes such as 28 U.S.C. § 2254.

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54. The Importance of the Standard of Review

The standard of review can determine the practical difficulty of winning an appeal.

Consider two defendants.

Defendant A

The defendant challenges the interpretation of a federal statute.

The appellate court reviews the legal question de novo.

Defendant B

The defendant challenges a factual finding made by the trial judge.

The appellate court reviews the finding for clear error.

Even if both defendants believe the trial judge was wrong, Defendant A generally faces a less deferential form of review.

This is why appellate lawyers identify the standard of review at the beginning of each substantive argument.

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55. The Importance of Prejudice

Showing that an error occurred is not always enough.

The appellant may also need to demonstrate that the error had a legally significant effect.

This is especially important where the government argues that the error was harmless.

For example, suppose a trial court incorrectly admits one relatively insignificant piece of evidence.

If the remaining evidence of guilt is overwhelming, an appellate court may conclude that the error did not justify reversal.

By contrast, if the error affected the only significant evidence establishing an essential element, the appellate analysis may be very different.

The appellant therefore often has to establish not only:

There was an error.

but also:

The error matters under the applicable standard.

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56. Appeals Based on Constitutional Harmless Error

Constitutional errors can be subject to specialized harmless-error analysis.

The Supreme Court has distinguished between ordinary trial errors and certain constitutional violations that require particularly careful review.

Some constitutional violations may be classified as structural errors, meaning that they affect the framework within which the trial proceeds and are not ordinarily treated as harmless in the same way as ordinary evidentiary mistakes.

Examples recognized by Supreme Court doctrine include certain fundamental defects involving the trial structure.

The classification of an error is therefore important.

An appellate court may ask:

1. What constitutional right was violated?
2. What type of error occurred?
3. Is the error subject to harmless-error analysis?
4. If so, what harmless-error standard applies?
5. What remedy is constitutionally required?

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57. Appeals Based on Prosecutorial Misconduct

Prosecutorial misconduct can also form the basis of an appeal.

Possible claims include:

• improper closing argument;
• suppression of favorable evidence;
• improper questioning of witnesses;
• prejudicial statements;
• improper references to a defendant’s silence;
• improper introduction of evidence; or
• other violations of prosecutorial duties.

The appellate court may consider:

• whether misconduct occurred;
• whether the defense objected;
• the applicable standard of review;
• the seriousness of the misconduct;
• whether the court gave a curative instruction;
• the strength of the government’s case; and
• whether the misconduct affected the verdict.

Again, preservation and prejudice can be decisive.

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58. Appeals Based on Jury Instructions

Jury instructions can generate significant appellate issues.

A defendant may argue that the court:

• omitted an element of the offense;
• misstated the law;
• improperly shifted the burden of proof;
• failed to instruct on a legally supported defense;
• gave an unconstitutional presumption; or
• otherwise confused the jury concerning the governing law.

The appellate court reviews the instructions within the legal framework applicable to the particular issue.

The court may consider the instructions as a whole rather than isolating one sentence.

The central question is whether the instructions accurately communicated the law and whether any error requires reversal.

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59. Appeals Based on Sentencing Conditions

A defendant may also challenge conditions imposed as part of probation or supervised release.

Such challenges can concern:

• statutory authority;
• constitutional rights;
• vagueness;
• overbreadth;
• procedural requirements;
• relationship to sentencing purposes; or
• other legal restrictions.

The appellate court may review whether the condition was lawfully imposed and whether the district court followed the required procedures.

A sentence can therefore contain multiple appellate issues even when the underlying conviction itself is not challenged.

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60. Waiver, Forfeiture, and Invited Error

Criminal appeals frequently involve distinctions among waiver, forfeiture, and invited error.

Forfeiture

A defendant fails to timely assert a known right.

Waiver

A defendant intentionally relinquishes a known right.

Invited error

A party affirmatively causes or requests the error that it later seeks to challenge.

These concepts can affect appellate review.

A defendant who specifically requested a particular jury instruction may have difficulty later arguing that the instruction was erroneous.

Similarly, a defendant who never objected to an evidentiary ruling may face plain-error review rather than ordinary review.

These doctrines reinforce the importance of making timely and precise objections during trial.

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61. The Appellate Court Usually Does Not Hear New Witnesses

The appellate function is fundamentally different from the trial function.

The trial court is designed to determine facts through:

• testimony;
• exhibits;
• cross-examination;
• credibility determinations; and
• factfinding.

The appellate court is primarily designed to determine whether the lower court applied the law correctly.

This is why appellate courts generally do not hear new witnesses.

If the defendant possesses genuinely new evidence, the appropriate procedural mechanism may instead involve a motion for a new trial or collateral relief, depending on the circumstances.

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62. Appellate Review of the Trial Record

The appellate judges may read:

• the transcript;
• exhibits;
• motions;
• rulings;
• jury instructions;
• sentencing materials;
• post-trial motions;
• briefs; and
• relevant legal authorities.

They may examine individual portions of the record in considerable detail.

An appellate opinion may therefore depend on a single objection, a specific sentence in a jury instruction, a particular ruling, or a precise factual finding.

This is why appellate practice is often highly technical.

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63. The Appellate Opinion

After reviewing the case, the appellate court issues a decision.

The opinion may:

• affirm;
• reverse;
• vacate;
• remand;
• dismiss the appeal;
• affirm in part and reverse in part; or
• provide another disposition.

The opinion may contain:

• the procedural history;
• relevant facts;
• legal issues;
• standards of review;
• analysis;
• disposition; and
• instructions for further proceedings.

The decision becomes part of the body of appellate precedent according to the applicable rules governing publication and precedential status.

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64. Precedent and Criminal Appeals

Appellate decisions can have effects beyond the individual defendant.

A published decision of a federal court of appeals can establish binding precedent within that circuit on questions of federal law, subject to the authority of the Supreme Court and other applicable principles.

For example, a circuit court may establish how a particular federal statute should be interpreted.

Later federal district courts within that circuit generally must follow controlling circuit precedent unless it has been overruled or superseded.

This is one reason criminal appeals contribute to the development of criminal procedure itself.

An appeal may begin as a defendant’s challenge to an individual conviction but produce a precedent affecting many later cases.

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65. Appeal as a Check on Trial Courts

The appellate system serves an institutional function as well as an individual one.

Trial judges make difficult decisions under substantial time pressure.

Appellate review provides an additional judicial layer capable of correcting legal errors and promoting consistency.

Appellate courts can:

• correct mistaken interpretations of statutes;
• identify unconstitutional practices;
• clarify procedural rules;
• establish standards for trial courts;
• correct unlawful sentences; and
• provide guidance for future cases.

The system therefore combines trial-level factfinding with appellate-level legal supervision.

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66. A Practical Example of a Criminal Appeal

Consider a defendant convicted of a federal offense after a jury trial.

During the trial, the defendant objected when the prosecution introduced a statement allegedly made by the defendant.

The district court admitted the statement.

The jury convicted the defendant.

After sentencing, the defendant files a timely notice of appeal.

The appeal proceeds approximately as follows.

Step One: Notice of appeal

The defendant files the notice in the district court within the applicable period.

Step Two: Record

The relevant trial and sentencing record is prepared for appellate review.

Step Three: Issues

The defendant identifies the admission of the statement as one issue on appeal.

The defendant may also challenge the sentence.

Step Four: Opening brief

The defendant explains why the statement was improperly admitted, identifies the governing constitutional or evidentiary rule, cites the record, states the applicable standard of review, and explains why the error was prejudicial.

Step Five: Government response

The government argues that:

• the statement was properly admitted;
• the defendant’s objection was insufficient;
• any error was harmless; and
• the sentence was lawful.

Step Six: Reply

The defendant responds to the government’s arguments.

Step Seven: Oral argument

If scheduled, counsel answer questions from the appellate panel.

Step Eight: Decision

The appellate court may affirm, reverse, vacate, or remand.

If it concludes that the statement was improperly admitted but the error was harmless, the conviction may be affirmed.

If it concludes that the error was prejudicial and requires a new trial, the conviction may be reversed and the case remanded.

If the only error concerns sentencing, the court may vacate the sentence and remand for resentencing while leaving the conviction intact.

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67. What Happens After a Successful Appeal?

A successful appeal does not always produce the same result.

If the conviction is reversed for insufficient evidence

The defendant may be entitled to an acquittal because the prosecution cannot ordinarily receive a second opportunity to prove an offense that it failed to prove sufficiently.

If the conviction is reversed for prejudicial trial error

The case may be remanded for a new trial.

If the sentence is reversed

The defendant may be resentenced.

If an evidentiary ruling is reversed

The case may return to the trial court for further proceedings consistent with the appellate decision.

If a clerical or limited error is identified

The lower court may simply correct the relevant portion of the judgment.

The appellate remedy therefore depends on the nature of the error.

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68. What Happens After an Unsuccessful Appeal?

If the court of appeals affirms the conviction and sentence, the defendant may have additional options.

Depending on the circumstances, the defendant may seek:

• rehearing by the panel;
• rehearing en banc;
• Supreme Court review through a petition for certiorari;
• later collateral relief under applicable law; or
• another specifically authorized remedy.

These mechanisms are not automatic.

Each has separate requirements, deadlines, and standards.

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69. Rehearing by the Same Court

After a federal court of appeals issues a decision, a party may in appropriate circumstances seek rehearing.

A panel rehearing asks the original panel to reconsider the decision.

An en banc rehearing asks the full court of appeals—or the judges participating in the circuit’s en banc procedure—to reconsider an important issue.

En banc review is exceptional rather than routine.

It may be particularly relevant when:

• the decision conflicts with circuit precedent;
• the case involves an exceptionally important legal question; or
• the panel decision creates a significant conflict within the circuit.

A petition for rehearing is therefore not simply another full appeal.

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70. Criminal Appeals and Finality

The appellate system attempts to balance two competing interests.

Accuracy

Legal errors should be corrected.

Finality

Criminal judgments must eventually become final.

Without finality, defendants and governments could repeatedly relitigate the same issues indefinitely.

The appellate system therefore establishes:

• filing deadlines;
• preservation requirements;
• standards of review;
• limits on repetitive appeals;
• restrictions on new evidence; and
• defined appellate remedies.

The objective is not perfect reconsideration of every aspect of every criminal case.

The objective is legally meaningful review within a structured system.

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71. A Step-by-Step Framework for Analyzing a Criminal Appeal

When analyzing a criminal appellate issue, the following framework is useful.

Step 1: Identify the judgment or order

What exactly is being appealed?

Is it:

• a conviction;
• a sentence;
• a pretrial order;
• a suppression ruling;
• a post-trial ruling; or
• another appealable decision?

Step 2: Determine appellate jurisdiction

Which court has authority to hear the appeal?

Step 3: Check the deadline

When was the relevant judgment or order entered?

Were there timely post-trial motions that affect the appellate period?

Step 4: Identify the alleged error

What exactly did the trial court do incorrectly?

Step 5: Check preservation

Was the issue raised and preserved in the trial court?

Step 6: Identify the standard of review

Is the issue reviewed:

• de novo;
• for clear error;
• for abuse of discretion;
• for plain error; or
• under another standard?

Step 7: Examine the record

Where does the record establish the relevant facts and rulings?

Step 8: Identify prejudice

Did the error affect substantial rights or otherwise justify appellate relief?

Step 9: Identify the requested remedy

Does the defendant seek:

• acquittal;
• a new trial;
• resentencing;
• vacatur;
• suppression;
• remand; or
• another remedy?

Step 10: Consider further review

If the appeal is unsuccessful, is rehearing or Supreme Court review available?

This framework helps prevent the common mistake of treating every appellate issue as though it were reviewed under the same rules.

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72. Common Misconceptions About Criminal Appeals

“An appeal is a second trial.”

No.

An appeal generally reviews the legal proceedings and existing record rather than conducting a new trial.

“The appellate judges decide whether they think the defendant is guilty.”

Usually not.

The appellate court generally reviews whether the trial court committed reversible error under the applicable standards.

“The defendant can introduce new evidence on appeal.”

Generally, no.

Appeals ordinarily proceed on the existing record.

New evidence may require another procedural mechanism.

“Every mistake by a trial judge requires reversal.”

No.

Some errors are harmless, and some are reviewed under highly deferential standards.

“If the defendant did not object at trial, the issue is automatically lost.”

Not necessarily.

Some unpreserved errors can receive plain-error review or another form of limited appellate review.

But failing to object can significantly weaken an appellate claim.

“A successful appeal always means the defendant goes free.”

No.

The remedy may be a new trial or resentencing rather than an acquittal.

“The government can appeal any decision that it dislikes.”

No.

Government appeals are limited by statute and constitutional protections.

“The Supreme Court must hear an appeal from the federal circuit court.”

No.

Supreme Court review is generally discretionary.

“A sentence cannot be appealed if the defendant pleaded guilty.”

Not necessarily.

Federal Rule of Criminal Procedure 32 expressly requires the court to advise defendants of any applicable right to appeal the sentence regardless of whether the defendant pleaded guilty.

The scope of appellate rights can nevertheless be affected by plea agreements and appeal waivers.

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73. Appeals After Guilty Pleas

A guilty plea changes the appellate landscape.

By pleading guilty, a defendant generally gives up the right to contest many issues concerning the government’s proof and the trial that never occurred.

But a guilty plea does not necessarily eliminate every possible appellate issue.

Depending on the circumstances, a defendant may still challenge:

• whether the plea was constitutionally valid;
• whether the court complied with required plea procedures;
• jurisdictional issues;
• certain sentencing errors;
• violations of the plea agreement;
• ineffective assistance in appropriate proceedings; or
• other legally recognized claims.

The precise scope of review may also be affected by an appellate waiver contained in the plea agreement.

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74. Waivers of the Right to Appeal

Plea agreements sometimes contain appeal waivers.

An appeal waiver is a contractual provision in which the defendant agrees to give up specified appellate rights in exchange for consideration from the government.

Such waivers can be significant.

But they are not necessarily unlimited.

Courts examine the language of the waiver, the circumstances in which it was entered, and whether the particular claim falls within its scope.

Certain claims may also remain reviewable despite an attempted waiver depending on applicable law.

A defendant therefore should not assume either that an appeal waiver eliminates every appellate possibility or that it has no legal effect.

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75. Criminal Appeals and Sentencing Agreements

A plea agreement may also specify a particular sentence or sentencing recommendation.

Federal law places specific limitations on appeals involving certain plea agreements and sentencing provisions.

For example, 18 U.S.C. § 3742 addresses circumstances in which a defendant or the government may appeal a sentence in cases involving agreements specifying a sentence.

The interaction between:

• the plea agreement;
• the sentence imposed;
• the appellate waiver;
• statutory appellate rights; and
• the applicable Federal Rules

can therefore become highly technical.

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76. Appeals and the Importance of Precision

Appellate practice rewards precision.

A trial argument might sometimes be presented broadly:

“This evidence is unfair.”

An appellate argument must generally be more specific:

The district court abused its discretion by admitting the evidence under Rule 403 because its probative value was substantially outweighed by the danger of unfair prejudice, and the error affected the defendant’s substantial rights.

The appellate court needs to know:

• what rule applies;
• what the trial court did;
• why that ruling was wrong;
• what standard governs review;
• where the record supports the argument; and
• what remedy should follow.

That is the essential architecture of appellate advocacy.

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Key Takeaways

• A criminal appeal is a form of higher-court review, not a second criminal trial.
• Federal criminal appeals from district courts ordinarily proceed to the appropriate federal court of appeals.
• The Supreme Court generally reviews court-of-appeals decisions only through discretionary certiorari review.
• A federal criminal defendant generally has 14 days to file a notice of appeal after the relevant judgment or order, subject to the specific rules governing the case.
• The government generally has 30 days when it is entitled to appeal.
• Timely post-trial motions can affect the calculation of the appeal period.
• The appellate court generally reviews the existing record rather than receiving a new body of evidence.
• Preserving an objection at trial can be critical to obtaining ordinary appellate review.
• Unpreserved errors may sometimes be reviewed under the demanding plain-error standard.
• Different appellate issues receive different standards of review, including de novo, clear-error, abuse-of-discretion, and plain-error review.
• Federal appellate briefs must identify the issues, relevant facts and procedural history, governing law, standard of review, arguments, record citations, and requested relief.
• Oral argument may occur, but not every appeal requires oral argument.
• Appellate courts can affirm, reverse, vacate, remand, or otherwise modify the lower court’s judgment.
• A successful appeal does not necessarily result in an acquittal; it may instead lead to a new trial or resentencing.
• Insufficient evidence and prejudicial trial error can produce very different appellate consequences.
• Federal sentencing appeals are governed in part by 18 U.S.C. § 3742.
• Government appeals are more restricted than defendant appeals and are subject to statutory and constitutional limitations.
• State criminal appellate procedures vary substantially among jurisdictions.
• Direct appeal and collateral review are distinct mechanisms and should not be treated as interchangeable.

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Frequently Asked Questions

What is an appeal in a criminal case?

An appeal is a request for a higher court to review a lower court’s decision for legal error or another recognized basis for appellate relief.

Is a criminal appeal a new trial?

No. An appellate court generally reviews the existing record rather than conducting a new trial.

How long does a defendant have to appeal a federal criminal conviction?

Under Federal Rule of Appellate Procedure 4, a defendant generally has 14 days after the later of entry of the judgment or order being appealed, or the filing of the government’s notice of appeal. Timely post-trial motions can affect the calculation.

Where is the notice of appeal filed?

In a federal criminal case, the notice is generally filed in the district court that entered the judgment, not directly in the court of appeals.

What does an appellate court look at?

The appellate court generally reviews the existing trial-court record, including transcripts, exhibits, motions, rulings, jury instructions, sentencing materials, and the judgment.

Can new evidence be introduced on appeal?

Generally, no. Appellate courts ordinarily decide cases on the existing record. Newly discovered evidence may require a motion for a new trial or another appropriate procedural mechanism.

What is the standard of review?

The standard depends on the issue. Legal questions may receive de novo review, factual findings may receive clear-error review, discretionary decisions may receive abuse-of-discretion review, and unpreserved errors may receive plain-error review where appropriate.

Can a defendant appeal a sentence?

Yes, subject to applicable law, procedural rules, plea agreements, and any appellate waiver. Federal law specifically provides for review of qualifying federal sentences.

Can the government appeal a criminal case?

Sometimes. The government’s appellate rights are limited by federal statutes and constitutional protections, including the Double Jeopardy Clause.

What happens if the appellate court finds an error?

The remedy depends on the error. The court may affirm despite harmless error, reverse a conviction, vacate a sentence, remand for a new trial, order resentencing, or provide another appropriate remedy.

Does winning an appeal mean the defendant is acquitted?

Not necessarily. A successful appeal may result in a new trial or resentencing rather than an acquittal.

What is a sentencing appeal?

A sentencing appeal challenges the legality or validity of the sentence rather than necessarily challenging the underlying conviction. Federal law identifies several circumstances in which a sentence may be appealed.

Can a defendant appeal after pleading guilty?

Sometimes. A guilty plea generally limits the issues that can be challenged, and a plea agreement may contain an appellate waiver, but certain claims and sentencing issues may remain reviewable.

Can ineffective assistance of counsel be raised on appeal?

Sometimes, but many ineffective-assistance claims are better suited to collateral proceedings because resolving them may require evidence outside the trial record.

What happens if the court of appeals affirms the conviction?

The defendant may, depending on the circumstances, seek rehearing or petition the United States Supreme Court for certiorari. Further collateral remedies may also exist in appropriate cases.

Does the Supreme Court have to hear a criminal appeal?

No. Supreme Court review is generally discretionary. A party usually must petition for a writ of certiorari and persuade the Court that the case warrants review.

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Conclusion

Appeals are an essential component of criminal procedure because they provide a structured mechanism for reviewing legal errors after the trial court has entered judgment.

But an appeal is not simply a second trial before different judges. The appellate court ordinarily works from the record created in the trial court and applies defined standards of review to particular legal issues. It does not ordinarily hear new witnesses, reweigh every factual dispute, or decide whether it personally would have reached the same verdict.

The process begins with the notice of appeal, which invokes appellate review within the applicable deadline. It then proceeds through preparation of the record, written briefing, possible oral argument, and an appellate decision. The appellant must identify the alleged error, explain the governing law, establish the appropriate standard of review, connect the argument to the record, and demonstrate why the error warrants relief.

The distinction between standards of review is particularly important. Legal questions may be reviewed de novo, factual findings may receive substantial deference, discretionary decisions may be reviewed for abuse of discretion, and unpreserved errors may be subject to the demanding plain-error standard. These distinctions reflect the different institutional roles of trial and appellate courts.

The possible remedies also depend upon the nature of the error. An appellate court may affirm the conviction, reverse it, vacate the sentence, order a new trial, require resentencing, or remand the case for another form of proceeding. A reversal does not automatically mean acquittal. In particular, the distinction between insufficient evidence and prejudicial trial error can determine whether the prosecution may retry the defendant.

Federal criminal sentencing appeals have their own statutory framework, including 18 U.S.C. § 3742, while the Federal Rules of Appellate Procedure establish much of the general appellate procedure.

At the highest level, the appellate system serves two purposes that can sometimes pull in opposite directions: correcting legal error and preserving finality. Criminal defendants need meaningful protection against unlawful convictions and sentences, but criminal litigation also must eventually reach a point at which judgments become final.

The appellate process attempts to reconcile those objectives through jurisdictional rules, filing deadlines, preservation requirements, standards of review, written briefing, judicial precedent, and carefully defined remedies.

For that reason, understanding criminal appeals is essential to understanding the criminal justice system as a whole. The trial determines what happened under the evidence presented. The sentencing court determines the legal consequences. The appellate court asks whether those judicial proceedings complied with the law.