Search Incident to Arrest

Search Incident to Arrest

A search incident to arrest is a warrantless search that may be conducted in connection with a lawful arrest under the Fourth Amendment. The doctrine recognizes that an arrest creates particular concerns for officer safety and the preservation of evidence, and it permits police to search the arrested person and, within defined limits, the area from which that person might obtain a weapon or destroy evidence.

The doctrine is an important exception to the ordinary Fourth Amendment preference for searches conducted pursuant to a warrant. But it is also a narrowly defined exception. An arrest does not give police unlimited authority to search everything around the arrested person.

The modern doctrine is primarily associated with Chimel v. California, which established the constitutional basis for searching the arrestee and the area within the arrestee’s immediate control. The Supreme Court later developed special rules for vehicle searches in New York v. Belton, Thornton v. United States, and, most importantly, Arizona v. Gant. Digital devices created another major limitation in Riley v. California, where the Court held that police generally must obtain a warrant before searching the digital contents of a cell phone seized during an arrest.

The Cornell Law School Legal Information Institute’s overview of warrantless searches incident to arrest explains the modern relationship between the search-incident-to-arrest doctrine, Chimel, and Riley.

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The Basic Idea

The general rule of the Fourth Amendment is that government searches must be reasonable. Warrants ordinarily provide judicial authorization for searches, although the Supreme Court has recognized several exceptions to the warrant requirement.

A search incident to arrest is one of those exceptions.

The basic principle is straightforward:

When police make a lawful custodial arrest, they may conduct certain searches without first obtaining a separate search warrant.

The justification is not that an arrest automatically eliminates the person’s privacy rights.

Instead, the arrest creates specific governmental interests that can justify a limited search:

1. protecting officers and others from weapons, and
2. preventing the destruction or concealment of evidence.

These interests explain both the existence and the limits of the doctrine.

If a proposed search has no meaningful relationship to those interests, the justification for extending the search becomes much weaker.

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The Constitutional Foundation

The doctrine arises under the Fourth Amendment, which protects people against unreasonable searches and seizures.

The Fourth Amendment does not prohibit every warrantless search. Instead, courts have recognized several carefully defined circumstances in which a warrantless search may be reasonable.

A search incident to arrest is one such circumstance.

The doctrine should therefore be distinguished from other warrantless-search exceptions, including:

• consent;
• exigent circumstances;
• the automobile exception;
• plain view;
• protective frisks;
• certain administrative searches;
• and searches based on other recognized exceptions.

Each doctrine has a different constitutional rationale.

A search incident to arrest is specifically connected to the lawful arrest and the risks created by that arrest.

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The Search Must Be Incident to a Lawful Arrest

A central requirement is that the arrest itself must be lawful.

An officer generally needs a constitutional basis for the arrest, ordinarily probable cause.

Cornell’s explanation of probable cause describes it as the Fourth Amendment standard generally required before police may make an arrest, conduct certain searches, or obtain a warrant.

The search-incident doctrine cannot ordinarily be used to create the justification for an arrest that did not otherwise exist.

This creates an important distinction between:

Lawful arrest → potentially permits a search incident to arrest

and

Unlawful arrest → cannot ordinarily supply a valid search-incident justification

The legality of the arrest therefore matters before the scope of the search is even considered.

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The Chimel Rule

The modern doctrine begins with Chimel v. California.

In Chimel, the Supreme Court rejected the idea that an arrest automatically authorized a broad search of an entire home.

Instead, the Court focused on the area within the arrested person’s immediate control.

This is sometimes described as the person’s “wingspan.”

The concept refers to the area from which the person might realistically obtain:

• a weapon; or
• destructible evidence.

The doctrine therefore has two related purposes:

Officer safety

An arrested person may have access to a weapon that could be used against officers or others.

A limited search can reduce that danger.

Evidence preservation

An arrested person may be able to destroy, conceal, or manipulate evidence within immediate reach.

A limited search can protect evidence from that risk.

These purposes define the constitutional boundaries of the search.

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The “Wingspan” Concept

The term wingspan is useful as an explanatory shorthand, but it should not be understood as a mathematical measurement.

The relevant question is whether the area was within the arrestee’s immediate control at the time of the arrest and search.

For example, suppose an officer arrests a person inside a room.

The officer may ordinarily search the person’s clothing and areas immediately accessible to the person.

But the officer cannot simply search every room of the house merely because the arrest occurred inside the house.

The distinction is between:

the area the arrestee could immediately reach

and

areas that are merely nearby or part of the same premises.

Proximity alone does not automatically establish constitutional authority.

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Searching the Person

The most straightforward form of a search incident to arrest is a search of the arrested person.

Police may generally search the arrestee’s person for weapons and evidence following a lawful custodial arrest.

This can include examination of:

• pockets;
• clothing;
• objects carried on the person;
• and other physical items associated with the arrestee.

The doctrine reflects the obvious safety concern associated with allowing an arrested person to retain potentially dangerous objects.

It also permits officers to secure physical evidence that the person could otherwise conceal or destroy.

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Physical Objects Found on the Arrestee

Physical objects discovered during a lawful search incident to arrest may potentially be seized as evidence.

Examples might include:

• a weapon;
• drugs;
• stolen property;
• forged documents;
• or other physical evidence.

The important constitutional distinction is between physical evidence and the information contained within a modern digital device.

The Supreme Court has treated these categories differently because digital devices can contain enormous quantities of highly private information and because digital data ordinarily cannot be used in the same way as a physical weapon.

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Searching the Immediate Surroundings

The doctrine is not limited to the person’s body.

Police may also search the area within the arrestee’s immediate control.

Suppose a person is arrested next to a table containing a bag that the person could immediately reach.

The circumstances may permit officers to inspect the area within the person’s reach, depending on the facts.

But if officers move the arrested person away, secure the person, and then conduct a search of an area that the person can no longer access, the constitutional analysis changes.

This distinction became particularly important in vehicle-search cases.

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A Search Is Not Automatically Valid Because It Happens “After an Arrest”

Timing alone is not enough.

The phrase search incident to arrest does not mean:

“Any search performed after an arrest is constitutional.”

The search must actually fall within the doctrine.

Courts may ask:

• Was there a lawful arrest?
• Was the search sufficiently connected to the arrest?
• Was the person or area within the permissible scope?
• Could the arrestee access the area?
• Was the search of a vehicle?
• Was the object a digital device?
• Did another exception apply?

This prevents the doctrine from becoming a blanket authorization for warrantless searches.

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The Search Does Not Necessarily Require Separate Probable Cause

One important feature of the doctrine is that officers generally do not need separate probable cause to search the arrestee’s person incident to a lawful custodial arrest.

The lawful arrest itself provides the constitutional foundation for the limited search.

This differs from many other warrantless-search doctrines.

For example:

Consent search: depends upon voluntary consent.

Exigent search: depends upon an urgent circumstance.

Automobile exception: generally requires probable cause concerning evidence in the vehicle.

Search incident to arrest: arises from the lawful custodial arrest and the interests recognized by the doctrine.

This is why it is important to understand the different exceptions independently rather than treating all warrantless searches as variations of the same rule.

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Search Incident to Arrest vs. Protective Frisk

A search incident to arrest should not be confused with a Terry frisk.

A Terry frisk is generally a limited protective search based on reasonable suspicion that a person is armed and dangerous.

A search incident to arrest arises from a lawful custodial arrest and permits a broader search of the arrestee.

The constitutional thresholds and rationales are therefore different.

A person who has merely been stopped is not automatically subject to the same search authority as a person who has been lawfully arrested.

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Search Incident to Arrest vs. Consent

Consent is another separate doctrine.

A person may voluntarily consent to a search even without being arrested.

Conversely, police may conduct a valid search incident to arrest without obtaining consent.

For example:

Consent:
“May I search your backpack?”
“Yes.”

Search incident to arrest:
A person is lawfully arrested, and police conduct a permissible search of the person’s physical belongings within the doctrine.

The first depends on voluntary permission.

The second depends on the constitutional consequences of a lawful arrest.

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Search Incident to Arrest vs. Exigent Circumstances

The two doctrines may sometimes appear in similar factual situations but should be kept conceptually separate.

An exigent-circumstances search is justified by an urgent situation that makes obtaining a warrant impracticable under the circumstances.

A search incident to arrest is justified by the specific interests associated with a lawful arrest.

For example, police may arrest someone and search the person’s immediate surroundings under the search-incident doctrine even if there is no separate emergency.

Conversely, police may sometimes conduct an emergency search even when no arrest has occurred.

The legal justification should therefore be identified precisely.

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Vehicle Searches Incident to Arrest

Vehicle searches have generated some of the most important developments in search-incident doctrine.

For many years, courts struggled with how the Chimel rule should apply when a person was arrested after being inside or near a vehicle.

The Supreme Court addressed this question in several cases, culminating in Arizona v. Gant.

The modern rule is considerably narrower than the proposition that police may automatically search every vehicle whenever they arrest a recent occupant.

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Arizona v. Gant

In Arizona v. Gant, the Supreme Court rejected an automatic rule allowing police to search a vehicle merely because they had arrested a recent occupant.

The Court held that police may search the passenger compartment of a vehicle incident to a recent occupant’s arrest only in specified circumstances.

As Cornell’s Supreme Court materials explain, the search is permissible when the arrestee is unsecured and within reaching distance of the passenger compartment at the time of the search, or when it is reasonable to believe that the vehicle contains evidence relevant to the offense of arrest.

This is a crucial limitation.

A person being a recent occupant of a vehicle does not, by itself, give police unlimited authority to search the vehicle.

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The First Gant Circumstance: Access to the Vehicle

The first situation concerns officer safety.

Police may search the passenger compartment when the arrestee is unsecured and within reaching distance of the vehicle at the time of the search.

The underlying reasoning comes directly from Chimel.

If the person could reach into the passenger compartment and obtain a weapon, the safety rationale remains relevant.

But once the person has been secured so that access is no longer realistically possible, the Chimel justification may disappear.

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The Second Gant Circumstance: Evidence of the Offense

The second circumstance is different.

Even when the arrestee cannot reach the vehicle, police may conduct a vehicle search incident to arrest when it is reasonable to believe that the vehicle contains evidence relevant to the offense of arrest.

This prevents the rule from being limited solely to immediate physical access.

For example, if a person is arrested for an offense involving evidence likely to be located inside the vehicle, the nature of the offense may provide a reasonable basis for searching the passenger compartment.

By contrast, an arrest for an offense that ordinarily produces no relevant vehicle evidence may not provide that justification.

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Arrest for a Traffic Offense

Traffic arrests illustrate the importance of Gant.

Suppose a driver is arrested for an offense such as driving with a suspended license.

The fact that the driver has been arrested does not automatically mean police may search the entire passenger compartment.

If the driver is secured and there is no reasonable basis to believe that evidence of the offense of arrest will be found in the vehicle, a search incident to arrest may not be justified.

This is one reason Gant is so important: it prevents the arrest itself from becoming a universal vehicle-search authorization.

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Passenger Compartment vs. Entire Vehicle

Even when Gant permits a vehicle search incident to arrest, the doctrine is not an unlimited authorization to search every part of the vehicle.

The constitutional analysis remains tied to the specific scope of the doctrine.

Other vehicle-search doctrines may permit broader searches in appropriate circumstances—for example, the automobile exception when its requirements are satisfied.

But a search justified specifically as an incident to arrest must remain within the boundaries established for that doctrine.

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Containers Inside a Vehicle

Containers inside the passenger compartment require careful analysis.

If Gant permits a search because there is a reasonable basis to believe that evidence relevant to the offense of arrest may be located in the vehicle, the scope of the search may include areas and containers where such evidence could reasonably be found.

But officers cannot automatically treat a lawful arrest as permission to open every container without regard to the constitutional justification.

The nature of the offense, the type of evidence sought, and the applicable search doctrine all matter.

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Search Incident to Arrest and Digital Devices

Modern technology has significantly limited the traditional doctrine.

The leading case is Riley v. California.

In Riley, the Supreme Court considered whether police could search digital information contained on a cell phone seized from an arrested person without first obtaining a warrant.

The Court unanimously rejected the idea that the traditional search-incident doctrine automatically permitted such a search.

Cornell’s materials explain that the Court distinguished digital information from the physical objects traditionally covered by the doctrine because digital data generally does not create the same immediate safety or evidence-destruction risks and because cell phones contain an extraordinary quantity and variety of private information.

The practical rule is therefore:

Police may generally seize and secure a cell phone incident to a lawful arrest, but they ordinarily need a warrant to search the phone’s digital contents.

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Physical Phone vs. Digital Contents

This distinction is essential.

Police may be able to physically inspect or secure a phone to ensure that it does not contain a physical weapon or other immediate danger.

That does not mean officers may automatically open the phone and examine its digital contents.

The physical object and the information stored within it present different constitutional interests.

For example, an officer may secure a smartphone found on an arrestee.

That does not automatically authorize the officer to examine:

• text messages;
• photographs;
• emails;
• contacts;
• browsing history;
• social-media information;
• application data;
• location information;
• or other stored digital records.

A warrant will generally be required unless another recognized exception independently applies.

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Why Riley Matters

Riley illustrates an important principle of constitutional interpretation.

The Supreme Court did not simply ask whether a cell phone technically fit within the historical concept of an object found on an arrested person.

It considered whether applying the traditional rule to digital information would remain consistent with the rationale of the search-incident doctrine.

The Court concluded that the modern cell phone is fundamentally different from a physical container such as a wallet or cigarette pack.

A smartphone can contain years of correspondence, photographs, financial information, medical information, location records, personal notes, and other highly private material.

That enormous informational capacity changes the privacy analysis.

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Search Incident to Arrest in a Home

A lawful arrest inside a home does not automatically permit police to conduct a general search of the home.

This is an important consequence of Chimel.

Police may generally search the arrestee and the area within the arrestee’s immediate control.

But an arrest does not transform every room, cabinet, drawer, or container in the residence into a permissible search location.

If officers want to conduct a broader evidentiary search of the home, they generally need a warrant or another independent exception to the warrant requirement.

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Protective Sweeps

A protective sweep is another doctrine that can arise during an arrest in a residence.

A protective sweep is not simply a search incident to arrest under the Chimel rule.

It is a limited inspection of areas where a dangerous person might be hiding, conducted under the conditions established by the Supreme Court.

The doctrine has its own requirements and should not be confused with a general evidentiary search.

Thus:

Search incident to arrest → focuses on the arrestee and immediate control.

Protective sweep → focuses on possible dangerous persons in a residence.

Search warrant → permits an evidentiary search based on judicial authorization.

Keeping these doctrines separate prevents an arrest from becoming a justification for an unrestricted house search.

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Timing of the Search

A search incident to arrest must have a genuine connection to the arrest.

The search does not necessarily have to occur at the exact second the handcuffs are placed on the person. Courts examine the circumstances surrounding the arrest and search.

But the government cannot ordinarily postpone a search indefinitely and then characterize it as incident to an earlier arrest.

The longer and more spatially disconnected the search becomes from the arrest, the more important it becomes to identify another constitutional justification.

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Can the Search Occur Before the Formal Arrest?

The sequence of events can become legally complicated when officers search a person immediately before formally announcing an arrest.

The government generally cannot manufacture a search-incident justification by conducting an otherwise unlawful search and then completing an arrest afterward.

The constitutional basis for the search must exist when the search occurs.

The sequence therefore matters.

Courts examine whether the arrest had actually occurred or was sufficiently contemporaneous with the search and whether the search was genuinely incident to the lawful arrest.

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Search Incident to Arrest and Custodial Arrest

The doctrine is particularly associated with custodial arrests.

The Supreme Court has refused to treat every minor police encounter or issuance of a citation as equivalent to a custodial arrest for purposes of expanding search authority.

This reflects the underlying rationale.

A full custodial arrest creates significantly greater concerns about weapons, access, and evidence than a situation in which an officer merely issues a citation.

Therefore, the existence of some police enforcement action does not automatically produce the same search authority as a lawful custodial arrest.

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Knowles v. Iowa

The distinction was illustrated by Knowles v. Iowa.

There, the Supreme Court rejected an attempt to extend the search-incident doctrine to a situation where an officer issued a citation rather than making a custodial arrest.

The Court emphasized that the safety and evidence-preservation concerns supporting the search-incident doctrine were not present to the same degree.

This case reinforces an important principle:

The search-incident doctrine is tied to the constitutional consequences of an actual arrest, not merely to the fact that police have stopped or cited someone.

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What Can Police Search?

A useful general framework is:

Location or object	General principle
Arrestee’s person	Generally searchable incident to lawful custodial arrest
Clothing and pockets	Generally within the search of the person
Immediate area within reach	Potentially searchable under Chimel
Entire room	Not automatically searchable
Entire home	Not automatically searchable
Vehicle	Special Gant rules apply
Cell phone’s physical exterior	May be secured/inspected for physical safety concerns
Cell phone’s digital contents	Generally requires a warrant under Riley, absent another exception
Property outside immediate control	Requires separate constitutional justification

These are general federal constitutional principles. The exact result depends on the facts and on any additional state constitutional protections.

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The Relationship Between Arrest and Search

The search-incident doctrine should not be understood as saying:

“An arrest creates unlimited search authority.”

The more accurate principle is:

A lawful custodial arrest creates a limited constitutional authority to search the person arrested and certain areas or objects connected to the purposes of the doctrine.

That distinction is fundamental.

An arrest can therefore trigger a search authority without eliminating the Fourth Amendment.

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A Practical Example: Arrest in a Home

Imagine police have probable cause to arrest Daniel for burglary.

They lawfully arrest Daniel inside his apartment.

Daniel is standing next to a table.

On the table is a backpack that Daniel could immediately reach.

The person

Police may generally search Daniel incident to the lawful arrest.

Immediate surroundings

The backpack may potentially fall within the area of immediate control, depending on the circumstances.

Bedroom

Police cannot automatically search Daniel’s entire bedroom simply because the arrest occurred there.

Kitchen

The fact that the kitchen is inside the same apartment does not automatically place it within Daniel’s immediate control.

Cell phone

If police seize Daniel’s smartphone from his pocket, they may secure it, but under Riley they generally need a warrant to search its digital contents.

Wider evidentiary search

If police want to search the apartment for additional evidence, they generally need a search warrant or another independent exception.

This example shows why the doctrine is fundamentally about scope.

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A Practical Example: Vehicle Arrest

Suppose police stop Maria’s vehicle and arrest her for driving with a suspended license.

Maria is handcuffed and placed in a patrol car.

Police then search the passenger compartment.

Under Arizona v. Gant, the search cannot be justified merely by saying that Maria was a recent occupant who had been arrested.

The court would ask:

1. Was Maria unsecured and within reaching distance of the passenger compartment?
2. If not, was it reasonable to believe that the vehicle contained evidence relevant to the offense of arrest?

If neither condition is satisfied, the search-incident doctrine does not ordinarily provide the justification.

Other Fourth Amendment doctrines could potentially apply, but the arrest itself would not be enough.

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The Exclusionary Rule

If police conduct a search that exceeds the constitutional limits of the search-incident doctrine, evidence discovered during the search may become subject to a suppression challenge.

A defendant may argue that:

1. the arrest was unlawful;
2. the search exceeded the permissible area;
3. the search was not genuinely incident to the arrest;
4. Gant did not authorize a vehicle search;
5. Riley prohibited the warrantless digital search;
6. or another constitutional requirement was violated.

The prosecution may respond by arguing that the search was lawful or that another exception independently justified it.

The ultimate question is whether the government’s conduct was reasonable under the Fourth Amendment.

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Other Exceptions May Still Apply

The failure of the search-incident doctrine does not necessarily mean that police could never search the property.

Another doctrine may independently authorize a search.

For example:

• valid consent may exist;
• exigent circumstances may justify immediate action;
• probable cause may support the automobile exception;
• evidence may be in plain view;
• a valid search warrant may be obtained;
• or another recognized exception may apply.

The constitutional analysis should therefore ask:

What legal doctrine actually authorizes this search?

Police cannot simply rely on the label “search incident to arrest” if the facts do not satisfy that doctrine.

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Federal and State Law

The federal constitutional rules established by the Supreme Court provide the minimum Fourth Amendment framework applicable to state and federal law enforcement.

But states may provide greater protection under their own constitutions or statutes.

A state court may therefore interpret its constitution as providing greater privacy protection than the federal Fourth Amendment requires.

Differences can arise concerning:

• vehicle searches;
• searches of containers;
• searches following minor offenses;
• digital evidence;
• arrest procedures;
• and suppression remedies.

For this reason, the federal rule should be treated as the constitutional baseline rather than as a complete statement of every state’s criminal procedure.

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Why the Doctrine Is Important

Search incident to arrest occupies a central position in criminal procedure because it illustrates how constitutional rights operate during one of the most intrusive moments of police-citizen interaction.

An arrest significantly restricts a person’s liberty.

At the same time, police officers must protect themselves, secure evidence, and maintain control of the arrest scene.

The law therefore attempts to balance these competing interests.

The resulting doctrine is neither:

“Police may search anything after an arrest,”

nor:

“Police may never search without a warrant.”

Instead, the rule is more precise:

A lawful custodial arrest may justify a limited warrantless search of the arrestee and areas within the constitutional scope of the doctrine, subject to special rules governing vehicles, digital devices, and other circumstances.

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Key Takeaways

• A search incident to arrest is a recognized exception to the Fourth Amendment warrant requirement.
• The arrest generally must be lawful.
• The doctrine is principally justified by officer safety and preservation of evidence.
• Chimel v. California established the modern focus on the arrestee and the area within the arrestee’s immediate control.
• The “wingspan” concept refers to the area from which an arrestee might obtain a weapon or destructible evidence.
• An arrest does not automatically authorize a search of an entire home.
• A custodial arrest is different from merely issuing a citation.
• Vehicle searches are governed by the additional limitations established in Arizona v. Gant.
• Under Gant, police may generally search the passenger compartment incident to a recent occupant’s arrest when the arrestee is unsecured and within reaching distance or when it is reasonable to believe the vehicle contains evidence relevant to the offense of arrest.
• Riley v. California generally requires a warrant to search the digital contents of a cell phone seized incident to arrest.
• Securing a physical phone is different from searching its digital contents.
• Consent, exigent circumstances, plain view, and other exceptions are separate doctrines.
• If a search exceeds the constitutional scope of the doctrine and no other exception applies, evidence may be subject to suppression.
• State constitutions may provide greater protections than the federal constitutional minimum.

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Frequently Asked Questions

Can police search me after arresting me?

Generally, a lawful custodial arrest permits police to search the arrested person for weapons and evidence. The search is subject to constitutional limits.

Can police search the entire area around me?

No. The doctrine generally focuses on the person and the area within the person’s immediate control. Mere proximity is not enough.

Can police search my entire house because I was arrested inside it?

No. A lawful arrest inside a home does not automatically authorize a general evidentiary search of the entire residence.

Can police search my car after arresting me?

Sometimes, but not automatically. Under Arizona v. Gant, the search-incident doctrine permits a vehicle search in specified circumstances involving the arrestee’s access to the vehicle or a reasonable basis to believe that the vehicle contains evidence relevant to the offense of arrest.

Can police search my phone after arresting me?

Generally, police need a warrant to search the digital contents of a cell phone seized during an arrest, under Riley v. California, unless another recognized exception applies.

Does an arrest automatically create probable cause to search everything?

No. Probable cause for the arrest and the separate scope of a search incident to arrest are different constitutional questions.

Can police search me if they only give me a ticket?

Not necessarily under the search-incident-to-arrest doctrine. The Supreme Court has distinguished a citation from a custodial arrest for purposes of this search authority.

What is the “wingspan” rule?

It is a shorthand description of the area within the arrestee’s immediate control—the area from which the person might obtain a weapon or destroy evidence.

Does a search incident to arrest require a warrant?

No. The doctrine itself is an exception to the ordinary warrant requirement.

What if police exceed the permissible scope?

If no other constitutional exception justifies the search, evidence discovered during an unlawful search may be subject to a suppression challenge.

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Conclusion

The search-incident-to-arrest doctrine is one of the most important warrantless-search doctrines in American criminal procedure because it operates at the intersection of arrest, officer safety, evidence preservation, and individual privacy.

Its foundation is not an unlimited governmental power created by arrest. Rather, the doctrine recognizes specific risks associated with a lawful custodial arrest and permits a correspondingly limited search.

The central rule established by Chimel is that police may search the arrested person and the area within the person’s immediate control. The Supreme Court has subsequently imposed additional limitations where the traditional rationale does not adequately justify a broader search.

The vehicle cases demonstrate this particularly clearly. Under Arizona v. Gant, an arrest of a recent vehicle occupant does not automatically authorize a search of the passenger compartment. The constitutional justification depends on the arrestee’s potential access to the vehicle or on a reasonable basis to believe that evidence relevant to the offense of arrest may be found there.

Digital technology has produced an even more significant limitation. Under Riley v. California, the traditional authority to search an arrested person does not ordinarily extend to the digital contents of a smartphone. The device may be secured, but its vast store of private digital information generally requires a warrant before police may examine it.

The modern doctrine can therefore be reduced to one central principle:

A lawful arrest creates limited search authority, not unlimited search authority.

Understanding that distinction is essential to analyzing whether evidence obtained after an arrest was constitutionally obtained.