The Law To Know

Post-Trial Motions in Criminal Cases

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Parent Topic Guide

This analysis is part of our comprehensive reference guide on Criminal Procedure.

Table of Contents

Post-Trial Motions

Post-Trial Motions in Criminal Cases

A criminal trial does not necessarily end when the jury returns a verdict or the judge announces a finding of guilt. After a conviction, the defendant may have an opportunity to ask the trial court to reconsider the result, set aside the verdict, order a new trial, or correct a fundamental defect in the judgment.

These requests are generally known as post-trial motions.

Post-trial motions occupy an important position between the trial and the appellate process. They allow the trial court—the court that actually conducted the proceedings—to address certain errors or problems before the case proceeds fully into appellate review. In some circumstances, a post-trial motion can eliminate the need for an appeal. In others, it preserves or clarifies issues that later become relevant on appeal.

The federal system provides several distinct mechanisms for post-trial relief. The most important include:

  • a motion for judgment of acquittal under Federal Rule of Criminal Procedure 29;
  • a motion for a new trial under Rule 33;
  • a motion to arrest judgment under Rule 34;
  • and, in a different category, motions concerning correction or reduction of a sentence under Rule 35 and correction of clerical errors under Rule 36.

These motions are not interchangeable. Each serves a different purpose, has different legal standards, and is subject to different filing requirements.

Cornell Law School’s Legal Information Institute provides the federal rules governing post-trial criminal procedure, including Rules 29 through 36.

The distinction among these remedies is essential. A defendant who argues that the prosecution’s evidence was legally insufficient is raising a different issue from a defendant who argues that newly discovered evidence requires a new trial. Likewise, a defendant challenging the court’s jurisdiction is raising a different issue from one arguing that the sentence contains a clerical mistake.

Understanding post-trial motions therefore requires asking not simply whether the defendant disagrees with the verdict, but what specific legal defect the defendant is asking the trial court to correct.


1. What Is a Post-Trial Motion?

A post-trial motion is a formal request asking the trial court to take some action after the conclusion of the trial or the return of a verdict.

The requested relief may include:

  • entering an acquittal;
  • vacating a conviction;
  • ordering a new trial;
  • arresting the judgment because of a fundamental legal defect;
  • correcting a sentence;
  • correcting a clerical error; or
  • taking another action authorized by the applicable procedural rules.

The phrase “post-trial motion” therefore describes a category of procedural mechanisms rather than one particular motion.

The central feature is that the defendant asks the trial court itself to provide relief.

That distinguishes post-trial motions from an appeal.

An appeal asks a higher court to review a lower court’s decision. A post-trial motion, by contrast, ordinarily asks the same trial court that conducted the proceedings to reconsider or correct a matter within its authority.

This distinction has practical consequences.

A trial judge is familiar with the evidence, procedural history, objections, rulings, and circumstances of the case. A post-trial motion gives that judge an opportunity to address an alleged problem directly.


2. Post-Trial Motions and the Criminal Process

Post-trial motions occupy a transitional position in the criminal process.

A simplified sequence is:

Investigation → Charges → Pretrial proceedings → Trial → Verdict → Post-Trial Motions → Sentencing → Judgment → Appeal

The exact sequence can vary.

For example, sentencing may occur before a post-trial motion is resolved, depending on the circumstances and applicable rules. Some motions are directed specifically at the conviction, while others concern the sentence after it has been imposed.

The important point is that verdict, sentencing, judgment, and appeal are not necessarily one single procedural event.

A jury may return a guilty verdict, but the defendant may then ask the trial court to enter a judgment of acquittal.

A defendant may also request a new trial because newly discovered evidence undermines confidence in the verdict.

A judgment may contain a fundamental jurisdictional problem that permits a motion to arrest judgment.

After sentencing, a separate rule may allow correction of a clear sentencing error.

Each mechanism addresses a different stage or type of problem.


3. The Principal Federal Post-Trial Motions

For federal criminal cases, the most important provisions are:

RuleMotionPrincipal purpose
Rule 29Judgment of acquittalChallenge the legal sufficiency of the evidence
Rule 33New trialObtain a new trial when the interests of justice require it
Rule 34Arresting judgmentAddress lack of jurisdiction over the charged offense
Rule 35Correcting or reducing a sentenceCorrect certain sentencing errors or address substantial assistance
Rule 36Clerical errorCorrect clerical mistakes in the record

The first three are the classic post-verdict mechanisms.

Rules 35 and 36 are related post-judgment mechanisms, but they should not be treated as substitutes for a Rule 29 or Rule 33 motion.


4. Motion for Judgment of Acquittal Under Rule 29

A motion for judgment of acquittal asks the court to determine that the prosecution’s evidence is legally insufficient to sustain a conviction.

Federal Rule of Criminal Procedure 29 provides the principal federal mechanism for this relief. The rule permits a defendant to move for acquittal during the trial and, after a guilty verdict or discharge of the jury, to make or renew the motion within the applicable time period.

Cornell’s Wex describes the federal criminal judgment-of-acquittal procedure as the modern equivalent of what was historically called a directed verdict.

The basic argument is:

Even accepting the evidence presented at trial, the prosecution did not produce legally sufficient evidence to support a conviction.

This is fundamentally different from arguing that the jury reached the wrong conclusion simply because the defendant disagrees with it.


5. What Does “Insufficient Evidence” Mean?

A judgment of acquittal based on insufficient evidence concerns the legal sufficiency of the government’s proof.

The question is not simply whether the judge personally believes the defendant is innocent.

Instead, the court considers whether the evidence was legally sufficient to support the conviction.

For example, suppose a criminal statute requires proof of:

  1. a particular act;
  2. a particular mental state; and
  3. a specific circumstance.

If the prosecution fails to produce legally sufficient evidence concerning one of those required elements, a Rule 29 motion may become relevant.

The defendant is essentially arguing that the prosecution failed to carry its burden of proving an essential element of the offense.


6. Rule 29 Can Be Raised During Trial

Although the phrase “post-trial motion” suggests that Rule 29 operates only after the verdict, Rule 29 actually allows a motion earlier in the trial.

Under Rule 29(a), after the government closes its evidence, or after all evidence has been presented, the court must enter a judgment of acquittal for an offense if the evidence is insufficient to sustain a conviction.

The court may also consider the issue on its own.

The defendant therefore has an opportunity to challenge the sufficiency of the evidence before the case reaches the jury.

If the court denies the motion, the defendant may continue presenting a defense.

The denial does not itself establish guilt.


7. Renewing a Rule 29 Motion After the Verdict

If the jury returns a guilty verdict, the defendant may renew the motion for judgment of acquittal.

Under the current federal rule, the motion must generally be made within 14 days after the guilty verdict or after the court discharges the jury, whichever is later.

If the jury returned a guilty verdict, the court may set aside that verdict and enter an acquittal.

If the jury failed to return a verdict, the court may enter a judgment of acquittal where the rule’s requirements are satisfied.

The significance of a Rule 29 motion is therefore substantial.

A jury may have found the defendant guilty, yet the trial judge may still determine that the evidence legally cannot support the conviction.


8. Judgment of Acquittal Versus Disagreement With the Jury

A Rule 29 motion is not simply a request for the judge to substitute a personal view of the evidence for that of the jury.

The jury ordinarily determines factual questions in a jury trial.

The Rule 29 inquiry is instead whether the evidence was legally sufficient to sustain the conviction.

This distinction protects the respective roles of judge and jury.

A defendant cannot ordinarily obtain an acquittal merely by arguing:

“The jury should have believed my witness instead of the government’s witness.”

The more fundamental argument would be:

“Even if the government’s evidence is accepted, it does not establish an essential element of the offense.”

That is the type of issue Rule 29 addresses.


9. The Relationship Between Rule 29 and Double Jeopardy

Judgment of acquittal also interacts with the constitutional protection against double jeopardy.

The distinction between an acquittal and other forms of post-trial relief can therefore be constitutionally significant.

Once a defendant has been acquitted, the government generally cannot simply retry the defendant for the same offense.

Federal Rule 29 itself recognizes this distinction in its provisions concerning conditional rulings on new-trial motions. When a court enters a judgment of acquittal after a guilty verdict, it must also conditionally determine whether a new trial would have been warranted if the acquittal were later reversed.

The conditional ruling does not itself destroy the finality of the acquittal.

This reflects the constitutional importance of the acquittal.


10. Motion for a New Trial Under Rule 33

A motion for a new trial is different from a motion for judgment of acquittal.

Instead of arguing that the prosecution’s evidence was legally insufficient, the defendant asks the court to set aside the existing result and conduct another trial because the interest of justice requires it.

Federal Rule of Criminal Procedure 33 authorizes the court, upon the defendant’s motion, to vacate a judgment and grant a new trial if the interest of justice so requires.

A new trial does not necessarily mean that the defendant is entitled to an acquittal.

It means that the original trial result is set aside and the case is tried again.


11. Grounds for a New Trial

The grounds for a new trial can vary according to the circumstances.

Potential grounds can include:

  • newly discovered evidence;
  • serious trial error;
  • improper admission or exclusion of evidence;
  • prejudicial misconduct;
  • juror misconduct;
  • prosecutorial misconduct;
  • ineffective assistance in circumstances where the claim is procedurally appropriate;
  • an erroneous jury instruction;
  • a verdict contrary to the weight of the evidence; or
  • another circumstance demonstrating that the interests of justice require a new trial.

Not every error justifies a new trial.

Courts generally distinguish between harmless errors and errors sufficiently serious to undermine the fairness or reliability of the proceeding.


12. New Trial Based on Newly Discovered Evidence

One of the most important forms of Rule 33 motion involves newly discovered evidence.

The concept is straightforward:

Evidence becomes available after the trial that could materially affect the case.

Examples might include:

  • a witness previously believed unavailable becomes available;
  • newly discovered documents contradict critical trial evidence;
  • forensic testing produces previously unavailable results;
  • evidence is discovered showing that a key witness was mistaken or dishonest; or
  • previously unknown evidence substantially undermines the prosecution’s case.

The mere existence of new information is not automatically enough.

The defendant ordinarily must demonstrate that the evidence satisfies the legal requirements for a new trial.

Courts commonly examine questions such as whether the evidence was genuinely new, whether it could reasonably have been discovered earlier, whether it is material, and whether it is sufficiently significant that a different result could reasonably follow.


13. The Three-Year Period for Newly Discovered Evidence

Federal Rule 33 establishes an unusually important distinction concerning filing deadlines.

A motion based on newly discovered evidence must be filed within three years after the verdict or finding of guilty. If an appeal is pending, the district court generally may not grant the motion until the appellate court remands the case.

This three-year period should not be confused with the deadline for other Rule 33 motions.

It is substantially longer because genuinely new evidence may not become available shortly after trial.

The rule nevertheless imposes an outer limit designed to preserve finality.


14. New Trial Motions Based on Other Grounds

A Rule 33 motion based on grounds other than newly discovered evidence must generally be filed within 14 days after the verdict or finding of guilty.

This short deadline reflects the importance of finality.

A defendant who believes that the jury was improperly instructed, that prejudicial misconduct occurred, or that another serious trial error requires a new trial cannot ordinarily wait indefinitely before raising the issue.

The motion must be timely under the applicable federal rules.


15. The Difference Between Rule 29 and Rule 33

The distinction can be summarized simply:

Rule 29

Question:

Was the evidence legally sufficient to support the conviction?

Potential result:

Acquittal.

Rule 33

Question:

Does the interest of justice require the conviction or judgment to be set aside and a new trial conducted?

Potential result:

New trial.

The two motions can sometimes be raised together.

For example, a defendant might argue:

  1. the evidence was legally insufficient and therefore the court should enter an acquittal; and
  2. alternatively, if the court does not grant an acquittal, the interests of justice require a new trial.

The remedies are different, so careful pleading can matter.


16. Motion to Arrest Judgment Under Rule 34

A motion to arrest judgment is a much narrower remedy.

Under Federal Rule of Criminal Procedure 34, the court must arrest judgment if it does not have jurisdiction over the charged offense. The defendant must generally file the motion within 14 days after the court accepts a verdict or finding of guilty, or after a guilty or nolo contendere plea.

Historically, arrest of judgment could encompass certain defects in the charging instrument.

Modern federal procedure is narrower.

Rule 34 was amended to conform to changes in Rule 12. Cornell’s rule notes explain that the amendment removed from Rule 34 the former basis involving failure of the indictment or information to state an offense because such defects generally must be raised under Rule 12 before trial.

Thus, Rule 34 should not be understood as a general-purpose motion for correcting every defect in the indictment.


17. Why Rule 34 Is Different

The central concern under Rule 34 is jurisdiction.

Suppose a federal court lacks jurisdiction over the offense charged.

A conviction cannot simply stand because a jury returned a guilty verdict.

The court’s authority to adjudicate the offense is fundamental.

Rule 34 provides a mechanism for addressing that problem after the verdict.

But defendants should not assume that every defect in an indictment belongs under Rule 34.

Many objections concerning charging documents must be raised before trial under Rule 12.

This illustrates an important principle of criminal procedure:

The procedural timing of an objection can be as important as the substance of the objection.


18. Rule 34 Is Not a Substitute for a Rule 29 Motion

The two motions may both arise after a guilty verdict, but they attack different problems.

A Rule 29 motion says:

The evidence cannot legally support this conviction.

A Rule 34 motion says:

The court lacks jurisdiction to enter judgment on this offense.

The distinction is fundamental.

A defendant who believes the prosecution failed to prove an element ordinarily has a Rule 29 issue, not a Rule 34 issue.

A defendant who believes the court lacked jurisdiction over the charged offense may have a Rule 34 issue.


19. Rule 35: Correction or Reduction of a Sentence

Rule 35 should be distinguished from the traditional post-verdict motions.

Federal Rule of Criminal Procedure 35 addresses correcting or reducing a sentence rather than challenging the jury’s verdict itself.

Under Rule 35(a), the court may correct a sentence resulting from arithmetical, technical, or other clear error within 14 days after sentencing.

Rule 35(b) also addresses reduction of a sentence based on a defendant’s substantial assistance to the government, subject to the requirements of the rule and applicable law.

The distinction is therefore:

  • Rule 29 concerns the conviction;
  • Rule 33 concerns the trial result;
  • Rule 34 concerns a particular jurisdictional defect;
  • Rule 35 concerns the sentence.

20. Rule 36: Clerical Errors

Rule 36 addresses a different and usually more straightforward problem.

A court may correct a clerical error in a judgment, order, or another part of the record.

This mechanism is designed for errors arising from oversight or omission rather than for reconsidering the substance of the court’s decision.

For example, suppose the judge orally imposes one sentence but the written judgment contains a typographical error recording a different number.

Rule 36 may provide a mechanism for correcting the written record so that it accurately reflects what the court actually decided.

It is not a general vehicle for changing a sentence merely because the defendant later believes the sentence was too severe.


21. Clerical Error Versus Judicial Error

The distinction between clerical and substantive error is important.

A clerical error might involve:

  • a typographical mistake;
  • an incorrect date;
  • an omitted word;
  • a transcription mistake;
  • a numerical error in the written order; or
  • another discrepancy between the record and the court’s actual decision.

A substantive judicial error is different.

Suppose the judge deliberately imposes a sentence of 120 months and later the defendant argues that 120 months was legally excessive. That is not merely a clerical mistake.

Rule 36 is therefore not a back door for reconsidering a substantive judicial decision.


22. Post-Trial Motions and the Presentence Process

Post-trial motions can interact with sentencing.

Suppose a defendant is convicted after trial and files a Rule 33 motion for a new trial.

The court may need to determine how that motion affects the timing of sentencing.

If the conviction is ultimately vacated and a new trial is ordered, sentencing based on the original conviction would ordinarily no longer proceed in the same manner.

If the post-trial motion is denied, the case can proceed to sentencing if sentencing has not already occurred.

The precise procedural sequence can depend upon the timing of the motion and the circumstances of the case.

This is another reason why post-trial motions should be understood as part of the transition between adjudication and final judgment rather than as an isolated procedural event.


23. Post-Trial Motions and the Appellate Process

One of the most important practical functions of post-trial motions is their relationship to appeal.

An appeal and a post-trial motion are not necessarily alternatives.

A defendant may first ask the trial court to correct an error and then appeal if the motion is denied.

Some timely post-trial motions also affect the timing of the notice of appeal under the Federal Rules of Appellate Procedure.

The rules governing criminal appeals recognize the special relationship between certain post-trial motions and the appeal deadline.

The federal appellate rules provide specific treatment for motions such as a Rule 29 motion and a Rule 33 motion when determining when the time for filing a criminal appeal begins to run.

Because appellate deadlines are jurisdictionally significant in many circumstances, defendants and counsel must calculate them carefully rather than assuming that the normal appeal deadline applies unchanged.


24. Why Timing Matters So Much

Post-trial motions are highly time-sensitive.

For federal criminal cases:

  • Rule 29 generally provides a 14-day period after the guilty verdict or discharge of the jury, whichever is later;
  • Rule 33 generally provides 14 days for grounds other than newly discovered evidence;
  • Rule 33 provides three years for newly discovered evidence;
  • Rule 34 generally provides 14 days after the relevant guilty finding, verdict, or plea;
  • Rule 35(a) provides 14 days after sentencing for correction of specified clear errors.

These deadlines are not interchangeable.

A defendant cannot safely assume that filing one motion automatically preserves every possible claim.

Nor should a defendant assume that a court can freely extend a deadline simply because the issue is important.

The Federal Rules contain specific provisions concerning extensions and excusable neglect, and the interaction between those provisions and the various motions can be technical.


25. Post-Trial Motions and Preservation of Issues

Post-trial motions can also be important for preserving issues for appellate review.

An appellate court ordinarily reviews the record created in the trial court.

If a defendant believes that an error occurred, counsel may need to raise it in the appropriate procedural manner to ensure that the appellate court can review the claim under the applicable standard.

This does not mean that every issue must always be raised through a post-trial motion.

Some objections must be raised earlier.

Others can be raised on appeal under specific circumstances.

Still others may be reviewed only under a more demanding standard if they were not properly preserved.

The procedural history therefore matters.


26. Preservation Is Not the Same as Winning

Filing a post-trial motion does not guarantee that the issue will ultimately prevail.

A defendant may preserve an argument and still lose it.

For example, a defendant might file a timely Rule 33 motion arguing that prosecutorial misconduct deprived the defendant of a fair trial.

The trial judge may conclude that:

  • the conduct did not occur;
  • the conduct occurred but was not improper;
  • the conduct was improper but harmless;
  • the conduct was insufficiently prejudicial to require a new trial; or
  • another legal reason defeats the motion.

The denial of the motion does not necessarily mean that the issue disappears.

It may instead create a clear record for appellate review.


27. The Trial Judge’s Role in Post-Trial Motions

The trial judge occupies a distinctive position when deciding post-trial motions.

The judge personally observed:

  • the evidence;
  • witnesses;
  • objections;
  • arguments;
  • jury instructions;
  • courtroom proceedings; and
  • the development of the case.

For that reason, some post-trial questions may be particularly suited to resolution by the trial court.

At the same time, the judge must apply the correct legal standard.

A Rule 29 motion, for example, is not simply a request for the judge to reconsider whether the jury made the correct factual choice.

A Rule 33 motion requires consideration of whether the interests of justice warrant the extraordinary remedy of a new trial.

A Rule 34 motion requires the court to determine whether it has jurisdiction over the charged offense.

The applicable legal standard therefore determines the scope of the judge’s authority.


28. New Trial Versus Appeal

A new trial and an appeal are fundamentally different forms of relief.

New trial

A successful Rule 33 motion generally means that the original trial result is set aside and the case proceeds to another trial.

The defendant may again face:

  • presentation of evidence;
  • witnesses;
  • cross-examination;
  • jury deliberations; and
  • a new verdict.

Appeal

An appeal generally asks a higher court to review legal errors in the existing proceedings.

The appellate court does not normally conduct a completely new criminal trial.

The distinction can therefore be expressed as:

New trial = redo the trial.

Appeal = review the legality of what happened in the trial court.


29. New Trial Versus Acquittal

A Rule 33 new trial and a Rule 29 acquittal also produce fundamentally different consequences.

If the court grants a judgment of acquittal, the defendant is acquitted of the relevant offense.

If the court grants a new trial, the prosecution may ordinarily retry the defendant, subject to constitutional and procedural limitations.

This difference makes the choice of remedy extremely important.

A defendant seeking an acquittal based on insufficient evidence is asking for the case to end in an acquittal.

A defendant seeking a new trial is asking for another opportunity to litigate the case.

The constitutional implications can therefore differ substantially.


30. Newly Discovered Evidence and the Choice of Remedy

Consider a defendant convicted of a serious offense.

After trial, defense counsel discovers a previously unknown video recording that appears to contradict the prosecution’s central witness.

A Rule 29 motion may not be the natural mechanism because the issue is not necessarily that the trial evidence was legally insufficient as presented.

Instead, the defendant may consider Rule 33 because the newly discovered evidence potentially undermines the reliability of the verdict.

The legal question becomes:

Would this new evidence justify setting aside the original result and conducting a new trial?

This illustrates why post-trial practice depends on identifying the precise nature of the problem.


31. Prosecutorial Misconduct as a Basis for Relief

Serious prosecutorial misconduct can sometimes support a motion for a new trial.

Examples might include:

  • improper statements to the jury;
  • improper use of evidence;
  • suppression of required information;
  • improper argument;
  • interference with the defendant’s rights; or
  • other conduct that substantially prejudiced the fairness of the trial.

The mere existence of prosecutorial error does not automatically require a new trial.

Courts generally examine the nature of the misconduct and its effect on the proceedings.

The defendant may therefore need to demonstrate substantial prejudice or another legally sufficient basis for relief.


32. Juror Misconduct

A defendant may also seek post-trial relief based on alleged juror misconduct.

Possible allegations can involve:

  • consideration of extraneous information;
  • improper communications;
  • outside research;
  • unauthorized evidence;
  • bias;
  • improper deliberation practices; or
  • other conduct violating the rules governing jury deliberations.

Juror misconduct claims are often procedurally complex because courts must balance the defendant’s right to a fair trial against the importance of protecting the confidentiality and integrity of jury deliberations.

Not every irregularity warrants a new trial.

The court must determine whether the alleged misconduct is legally sufficient to justify disturbing the verdict.


33. Erroneous Jury Instructions

A defendant may seek a new trial if the jury received materially incorrect instructions concerning the law.

Jury instructions explain:

  • the elements of the offense;
  • the prosecution’s burden of proof;
  • defenses;
  • evidentiary principles;
  • the meaning of relevant legal terms; and
  • the manner in which the jury should deliberate.

An instruction that incorrectly describes an essential element can be particularly serious.

But not every imperfection in jury instructions requires a new trial.

Courts may consider the instructions as a whole and determine whether the alleged error actually affected the fairness of the trial.


34. Weight of the Evidence

A Rule 33 motion can also raise concerns about the weight of the evidence.

This is conceptually different from a Rule 29 sufficiency challenge.

A sufficiency challenge asks whether the evidence was legally capable of supporting the conviction.

A weight-of-the-evidence argument may ask whether the evidence, considered as a whole, so strongly undermines the verdict that justice requires a new trial.

The standards and scope of review can be complex, and federal courts place significant limits on the circumstances in which a judge should displace a jury’s determination.

This distinction is important because it demonstrates that Rule 29 and Rule 33 can examine the trial record from different legal perspectives.


35. Post-Trial Motions in Bench Trials

Not every criminal case is decided by a jury.

A defendant may waive a jury trial where legally permitted, resulting in a bench trial before a judge.

Post-trial procedures can therefore look somewhat different.

Rule 33 expressly provides that when a case was tried without a jury, the court may take additional testimony and enter a new judgment if a new trial is ordered.

The absence of a jury changes the institutional structure of the case, but it does not eliminate the possibility of post-trial relief.

The defendant may still challenge the legal sufficiency of the evidence, seek a new trial where authorized, or raise other appropriate post-trial issues.


36. Conditional Rulings

Federal Rule 29 contains a particularly important procedural mechanism involving conditional rulings.

If the court enters a judgment of acquittal after a guilty verdict, the court must also conditionally determine whether a motion for a new trial should be granted if the acquittal is later vacated or reversed.

This mechanism allows the appellate process to proceed without leaving the trial court’s alternative ruling unresolved.

For example:

  1. the jury returns a guilty verdict;
  2. the defendant moves for judgment of acquittal;
  3. the court grants the acquittal;
  4. the court conditionally determines whether a new trial would also be appropriate;
  5. an appellate court later reverses the acquittal;
  6. the trial court proceeds according to the applicable appellate ruling.

Rule 29 expressly states that the conditional order concerning a new trial does not affect the finality of the judgment of acquittal.


37. Can the Judge Order a New Trial Without a Defendant’s Motion?

Under Rule 33, the federal district court’s authority is structured around a defendant’s motion.

The rule provides that, upon the defendant’s motion, the court may vacate the judgment and grant a new trial if the interest of justice so requires.

This limitation has an important constitutional background.

A court ordering a new trial on its own initiative after an acquittal could create serious double-jeopardy concerns.

The procedural rules therefore distinguish between a court’s authority before a verdict—for example, declaring a mistrial in appropriate circumstances—and its authority after a defendant has been found guilty.


38. What Happens When a Post-Trial Motion Is Granted?

The consequence depends upon the type of motion.

If Rule 29 relief is granted

The court may enter a judgment of acquittal.

If Rule 33 relief is granted

The judgment may be vacated and a new trial ordered.

If Rule 34 relief is granted

The court arrests the judgment because of the jurisdictional defect covered by the rule.

If Rule 35 relief is granted

The sentence may be corrected or reduced within the authority provided by the rule.

If Rule 36 relief is granted

The record may be corrected to reflect the court’s actual decision.

These remedies demonstrate why it is inaccurate to speak of “a post-trial motion” as though there were only one.


39. What Happens When a Post-Trial Motion Is Denied?

If the motion is denied, the defendant may still have appellate remedies.

The defendant can generally seek appellate review of qualifying claims, subject to:

  • appellate jurisdiction;
  • preservation requirements;
  • standards of review;
  • applicable deadlines;
  • the specific nature of the claim; and
  • other procedural limitations.

The trial court’s written or oral ruling on the motion becomes part of the record.

That record can be important to the appellate court’s analysis.


40. Post-Trial Motions and the Finality of Criminal Judgments

The criminal justice system must balance two competing principles.

One is accuracy.

A criminal conviction should not stand if serious legal error has undermined the fairness or reliability of the proceeding.

The other is finality.

Criminal cases cannot remain permanently open to repeated challenges based on the same allegations.

Post-trial motions occupy the space between these principles.

The rules provide a limited period during which certain errors can be brought back before the trial court.

Once those mechanisms are exhausted, the case generally proceeds toward final judgment and appellate review.

The short filing deadlines for many post-trial motions therefore serve a broader institutional purpose: they encourage errors to be identified while the trial record is still fresh while preventing indefinite uncertainty.


41. A Practical Example

Consider a federal criminal trial in which the defendant is charged with fraud.

The jury returns a guilty verdict.

The defense believes three different problems occurred.

Problem One: Insufficient evidence

The defense argues that the government never produced sufficient evidence connecting the defendant to one essential element of the offense.

This may support a Rule 29 motion for judgment of acquittal.

Problem Two: Newly discovered evidence

After trial, the defense discovers a previously unknown financial record that strongly contradicts a central government witness.

This may support a Rule 33 motion for a new trial based on newly discovered evidence, assuming the legal requirements are satisfied.

Problem Three: Sentencing calculation

After sentencing, the written sentence contains a clear mathematical error.

Depending on the nature of the error, a Rule 35(a) motion may be relevant.

If the written judgment merely contains a clerical discrepancy that does not reflect what the judge actually ordered, Rule 36 may be the appropriate mechanism.

The same criminal case can therefore involve several different post-trial or post-judgment procedures, each addressing a different legal problem.


42. Common Misconceptions About Post-Trial Motions

“A guilty verdict ends the case immediately.”

Not necessarily.

A guilty verdict can be followed by post-trial motions, sentencing, entry of judgment, and appellate proceedings.

“A Rule 29 motion asks the judge to decide whether the defendant is innocent.”

Not exactly.

The central question is whether the evidence was legally sufficient to sustain the conviction.

“A new trial means the defendant has been acquitted.”

No.

A new trial means the previous trial result has been set aside and the case may be tried again.

“Any trial mistake automatically requires a new trial.”

No.

Courts distinguish between harmless errors and errors sufficiently serious to justify disturbing the verdict.

“Rule 34 lets a defendant challenge anything wrong with the indictment.”

No.

Modern Rule 34 is narrowly focused on the court’s jurisdiction over the charged offense. Many defects in an indictment must be raised before trial under Rule 12.

“Rule 35 is another way to challenge the conviction.”

Generally, no.

Rule 35 primarily addresses correction or reduction of a sentence.

“Rule 36 lets the judge change a sentence whenever necessary.”

No.

Rule 36 addresses clerical errors and errors arising from oversight or omission; it is not a general mechanism for substantive reconsideration of a sentence.

“Filing a post-trial motion automatically wins an appeal.”

No.

The motion and any subsequent appeal remain subject to their own legal standards and procedural requirements.


43. A Step-by-Step Framework for Analyzing a Post-Trial Motion

When analyzing a post-trial issue in a criminal case, the following sequence is useful.

Step 1: Identify the procedural stage

Has the jury returned a verdict?

Has the judge entered a finding of guilt?

Has sentencing occurred?

Has formal judgment been entered?

The answer can determine which procedural mechanisms are available.

Step 2: Identify the alleged problem

Is the issue:

  • insufficient evidence;
  • newly discovered evidence;
  • trial error;
  • prosecutorial misconduct;
  • juror misconduct;
  • erroneous jury instructions;
  • jurisdiction;
  • sentencing error; or
  • clerical error?

Step 3: Identify the appropriate rule

Consider whether the issue falls under:

  • Rule 29;
  • Rule 33;
  • Rule 34;
  • Rule 35;
  • Rule 36; or
  • another procedural provision.

Step 4: Determine the deadline

Federal post-trial motions often have short filing periods.

The applicable deadline must be calculated under the relevant rule.

Step 5: Identify the requested remedy

Does the defendant want:

  • acquittal;
  • a new trial;
  • arrest of judgment;
  • correction of sentence; or
  • correction of the record?

Different motions require different showings.

The standard for legal insufficiency is not the same as the standard for a new trial.

Step 7: Determine whether the issue was preserved

Was the issue previously raised?

Was an objection made during trial?

Was the appropriate motion filed?

Could the issue be treated differently on appeal if it was not preserved?

Step 8: Consider constitutional consequences

Does granting or denying the motion implicate:

  • double jeopardy;
  • due process;
  • the right to a jury trial;
  • the right to counsel; or
  • another constitutional protection?

Step 9: Consider appellate consequences

Will the ruling affect the timing or scope of a potential appeal?

Step 10: Examine the record

What does the trial transcript, evidence, verdict, judgment, and motion record actually establish?

This framework helps distinguish the procedural remedy from the underlying substantive complaint.


44. Post-Trial Motions in Federal and State Courts

The discussion above focuses primarily on federal criminal procedure.

State criminal courts have their own procedural systems.

A state may provide:

  • different deadlines;
  • different grounds for new trials;
  • different standards for sufficiency challenges;
  • different procedures for sentencing motions;
  • different rules governing preservation;
  • different mechanisms for challenging indictments; or
  • additional post-trial remedies.

Some state systems may use terminology that differs from the Federal Rules.

For example, a state may refer to a motion for judgment notwithstanding the verdict, a motion to set aside the verdict, or another procedural mechanism that serves a function similar to a federal rule.

Therefore, federal Rule 29, Rule 33, and Rule 34 should not be treated as universal descriptions of American criminal procedure.

They provide the federal framework.


45. Post-Trial Motions and the Importance of Legal Strategy

Post-trial practice illustrates why criminal procedure is not simply a chronological sequence of courtroom events.

The same underlying problem can sometimes be characterized in different legal ways, but the available remedies may differ.

For example, a defendant who believes the evidence was weak must distinguish between:

  • evidence that was legally insufficient;
  • evidence that was sufficient but unpersuasive;
  • evidence that was improperly admitted;
  • evidence that was later contradicted by newly discovered material; and
  • evidence that was affected by prosecutorial misconduct.

Each circumstance can lead to a different procedural argument.

The distinction is not merely technical.

It can determine:

  • which motion is available;
  • when it must be filed;
  • what standard the court applies;
  • what evidence the court may consider;
  • what remedy is available; and
  • how the issue can later be reviewed on appeal.

46. The Relationship Between Post-Trial Motions and Final Judgment

A criminal case may pass through several legally distinct stages after the jury’s verdict.

The sequence may involve:

Verdict → post-trial motion → sentencing → judgment → appeal

But this sequence is not completely rigid.

Some post-trial motions may be decided before sentencing.

Others concern the sentence itself.

The formal judgment is especially important because it generally represents the final adjudication from which appellate procedures operate.

The defendant and counsel therefore must distinguish between:

  • the jury’s verdict;
  • the court’s ruling on post-trial motions;
  • the sentence;
  • the written judgment; and
  • the appellate judgment.

Each has a different procedural significance.


47. Why Post-Trial Motions Matter

Post-trial motions serve several purposes within the criminal justice system.

They give the trial court an opportunity to correct an error without requiring immediate appellate intervention.

Protecting defendants

They provide a mechanism for challenging convictions or sentences that may be legally defective or unjust.

Promoting accurate outcomes

Newly discovered evidence and serious trial errors can be addressed before the case becomes fully final.

Promoting judicial efficiency

Some errors can be corrected by the trial court without requiring an appeal.

Preserving issues

Properly presented post-trial arguments can become part of the record for appellate review.

Promoting finality

Strict deadlines prevent criminal cases from remaining indefinitely subject to reconsideration.

Post-trial motions therefore serve both the interests of fairness and finality.


Key Takeaways

  • Post-trial motions allow a criminal defendant to seek relief from the trial court after a verdict or finding of guilt.
  • They are different from appeals because they initially ask the trial court itself to provide relief.
  • Rule 29 provides the federal procedure for a judgment of acquittal based on insufficient evidence.
  • A Rule 29 motion may be made during trial and may be renewed after a guilty verdict.
  • Rule 29 generally provides a 14-day period after a guilty verdict or discharge of the jury, whichever is later.
  • Rule 33 permits a defendant to seek a new trial when the interest of justice requires it.
  • Most Rule 33 motions must generally be filed within 14 days after the verdict or finding of guilt.
  • A Rule 33 motion based on newly discovered evidence generally has a three-year filing period.
  • Rule 34 provides a narrow mechanism for arresting judgment when the court lacks jurisdiction over the charged offense.
  • Many defects in an indictment must be raised before trial rather than through Rule 34.
  • Rule 35 concerns correction or reduction of a sentence rather than the validity of the conviction itself.
  • Rule 36 addresses clerical errors in judgments, orders, or other parts of the record.
  • Post-trial motions can affect the timing and structure of appellate proceedings.
  • The different motions provide different remedies: acquittal, new trial, arrest of judgment, sentence correction, or record correction.
  • Federal and state post-trial procedures can differ substantially.

Frequently Asked Questions

What is a post-trial motion in a criminal case?

A post-trial motion is a request asking the trial court to provide relief after a verdict or finding of guilt. Depending on the motion, the defendant may seek an acquittal, a new trial, correction of a judgment or sentence, or another authorized remedy.

What is a Rule 29 motion?

A Rule 29 motion is a federal motion for judgment of acquittal based on insufficient evidence to sustain a conviction. It can be made during the trial and renewed after a guilty verdict.

What is a Rule 33 motion?

A Rule 33 motion asks the federal trial court to vacate the judgment and grant a new trial when the interest of justice requires it.

How long does a defendant have to file a federal motion for a new trial?

Generally, a Rule 33 motion based on grounds other than newly discovered evidence must be filed within 14 days after the verdict or finding of guilty. A motion based on newly discovered evidence generally must be filed within three years.

Can a defendant seek an acquittal after a guilty verdict?

Yes. Under Rule 29, a defendant may renew a motion for judgment of acquittal after a guilty verdict within the applicable period.

Is a new trial the same as an acquittal?

No. An acquittal ends the prosecution as to the acquitted offense subject to applicable constitutional rules, while a new trial ordinarily means that the case will be tried again.

What is a motion to arrest judgment?

Under federal Rule 34, it is a motion addressing the court’s lack of jurisdiction over the charged offense. It is a narrow remedy and is not a general mechanism for correcting every defect in a criminal prosecution.

Can a defendant challenge an indictment after trial?

Sometimes, but the answer depends on the nature of the alleged defect. Federal Rule 34 is narrowly focused on jurisdiction, while many defects concerning an indictment must be raised under Rule 12 before trial.

What is Rule 35?

Rule 35 concerns correction or reduction of a criminal sentence. Among other things, Rule 35(a) permits correction of a sentence resulting from an arithmetical, technical, or other clear error within 14 days after sentencing.

What is Rule 36?

Rule 36 permits the court to correct clerical errors in a judgment, order, or other part of the record.

Does filing a post-trial motion prevent an appeal?

The interaction between post-trial motions and appellate deadlines is governed by specific federal appellate rules. Certain timely post-trial motions affect when the time for filing a criminal appeal begins to run.

Can a defendant file more than one post-trial motion?

Depending on the circumstances, a defendant may raise more than one form of post-trial relief. Different motions may address different legal problems, but each has its own requirements and deadlines.

Are post-trial motions the same in every U.S. state?

No. State criminal procedure varies substantially. The Federal Rules of Criminal Procedure apply to federal criminal cases and do not establish a single nationwide state-court procedure.


Conclusion

Post-trial motions provide an important procedural bridge between the criminal trial and the appellate process.

A guilty verdict does not necessarily mean that every legal question concerning the trial has been permanently resolved. Federal criminal procedure provides several mechanisms through which the trial court can reconsider particular aspects of the case.

A Rule 29 motion for judgment of acquittal addresses the legal sufficiency of the evidence. A Rule 33 motion for a new trial addresses circumstances in which the interests of justice require the original trial result to be vacated. A Rule 34 motion to arrest judgment addresses the court’s jurisdiction over the charged offense. Rules 35 and 36 address different post-judgment concerns involving sentencing and clerical errors.

The distinctions among these mechanisms are fundamental. A defendant who believes the evidence was insufficient is not presenting the same claim as a defendant who has discovered new evidence. A defendant challenging the court’s jurisdiction is not presenting the same claim as one challenging a sentencing calculation. And a defendant seeking correction of a clerical error is not necessarily asking the court to reconsider the substance of its judgment.

The procedural rules also demonstrate the importance of timing. Many post-trial motions must be filed within a short period after the verdict or sentencing, while the special three-year period for newly discovered evidence reflects the different nature of that claim.

Ultimately, post-trial motions serve two competing objectives of criminal procedure: accuracy and finality. They give the trial court a meaningful opportunity to correct serious errors while the case remains within its jurisdiction, but they also impose deadlines designed to prevent criminal litigation from remaining indefinitely unsettled.

For that reason, post-trial motions are not merely technical paperwork following a criminal trial. They are an important part of the judicial process through which a conviction, judgment, or sentence can be tested against the requirements of law before the case moves into full appellate review.

⚖️Legal Disclaimer & Notice

The information provided in this article ("Post-Trial Motions in Criminal Cases") is for general educational and informational purposes only and does not constitute formal legal advice. Reading this content does not create an attorney-client relationship. Laws vary by jurisdiction; consult a licensed attorney for specific legal matters.

Tsvety, LL.M., M.A.

Tsvety, LL.M., M.A.

Founder & Editor-in-Chief | Author & Legal Educational Architect

Tsvety holds a Master of Laws (LL.M.) awarded with highest distinction—having completed an intensive six-year university legal curriculum in just four years—alongside a Master’s Degree in Philosophy.

With over ten years of dedicated experience as a legal educator, author, and instructional designer, she founded The Law To Know to bridge the gap between complex legal theory, human cognition, and modern technology. Her work synthesizes rigorous statutory analysis with modern pedagogical frameworks to make legal knowledge accessible, structured, and practical.

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