
A citizen's arrest is a common law rule that permits a private citizen to arrest another individual without a warrant for a crime occurring in their presence. The practice dates back to medieval England, where sheriffs encouraged citizens to help apprehend lawbreakers. Today, the term citizen's arrest is used to describe the act of apprehending a lawbreaker by a person who is not a sworn law enforcement official. While the specific laws vary by state, most states in the United States have codified the common law rule that allows a warrantless arrest by a private citizen for a felony, misdemeanor, or breach of peace. The Fourth Amendment of the U.S. Constitution also permits searches of an arrestee as an incident to the arrest, even in the case of an illegal but not unconstitutional arrest.
| Characteristics | Values |
|---|---|
| Who can make an arrest? | A private citizen, who is not acting as a sworn law-enforcement official, can make an arrest. |
| Where is it applicable? | Common law jurisdictions, including England, Wales, and the United States. |
| What are the requirements for an arrest? | Probable cause or reasonable belief that a crime has been, is being, or will be committed. |
| Is a warrant required? | No, a warrant is not always necessary, but it depends on the jurisdiction and the type of crime. |
| What are the limitations? | The person making the arrest must have reasonable grounds and cannot act on a mere hunch. |
| What happens after an arrest? | The arrested person must be informed of the cause of the arrest and given a Miranda warning. They are also entitled to prompt judicial determination. |
| What are the consequences of making an arrest? | The person making the arrest may face lawsuits or criminal charges if the arrest is not carried out properly. |
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What You'll Learn

Citizen's arrest
A citizen's arrest is an arrest made by a private citizen—a person who is not a sworn law enforcement official. In common law jurisdictions, the practice dates back to medieval England, where sheriffs encouraged ordinary citizens to help apprehend lawbreakers.
In the United States, a private person may arrest another without a warrant for a crime occurring in their presence. However, the crimes for which this is permitted vary by state. Most states have codified the common law rule that a warrantless arrest may be made by a private person for a felony, misdemeanor, or "breach of peace". "Breach of peace" covers a multitude of violations, including a misdemeanor seatbelt violation, theft, "nightwalking", prostitution, and playing card and dice games. For example, in Texas, a citizen can make an arrest if they see a felony or a breach of the peace being committed.
In some states, there are more specific conditions for a citizen's arrest. For instance, in Pennsylvania, the courts have stated that a non-law enforcement officer cannot make an arrest for a "summary offense". In North Carolina, there is no "citizen's arrest", though the practice is essentially the same and is referred to as a "detention".
Anyone who makes a citizen's arrest can face possible lawsuits or criminal charges (e.g. charges of false imprisonment, unlawful restraint, kidnapping, or wrongful arrest) if the wrong person is apprehended or a suspect's civil rights are violated. This is because private citizens do not enjoy the same immunity from civil liability when making arrests on other private citizens as police officers do.
In Australia, a citizen's arrest is lawful when a private citizen or security officer detains a suspect, acts reasonably, and the suspect acts unreasonably. In this case, the court will likely find in favour of the citizen or security officer if the suspect later sues for assault or false imprisonment.
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Probable cause
While probable cause is necessary for an arrest, it does not require proof beyond a reasonable doubt, which is the standard for a conviction. Courts determine probable cause on a case-by-case basis, considering the totality of the circumstances, including the facts available to the officer, their experience and training, and the reliability of the information.
In some cases, a warrantless arrest may be legitimate if an officer has probable cause to believe that a suspect has committed a crime, is about to commit a crime, or to prevent a suspect's escape or preserve evidence. However, a lack of probable cause will render a warrantless arrest invalid, and any evidence obtained from such an arrest will be suppressed.
It is important to note that the concept of probable cause is imprecise and fluid, depending on the context of each case.
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Search incident to arrest
Search incident to a lawful arrest, also known as Search Incident to Arrest (SITA) or the Chimel rule (from Chimel v. California), is an American legal principle that allows police to perform a warrantless search of an arrested person and the area within the arrestee's immediate control. This is done in the interest of officer safety, the prevention of escape, or the preservation of evidence. These searches are exceptions to the usual practice of obtaining a search warrant under the Fourth Amendment.
In Harris v. United States (1947), the Supreme Court of the United States held that a law enforcement officer was permitted to perform a warrantless search during or immediately after a lawful arrest of the arrestee and their premises, regardless of the purpose of the arrest. In United States v. Rabinowitz (1950), the Court narrowed its ruling to searches of the area within the arrestee's "immediate control." The Court further limited the exception in California v. Chimel (1969) to the arrestee and the area within their immediate control to remove any weapons that the arrestee might use to resist arrest or escape, and to prevent the "concealment or destruction" of evidence.
In United States v. Robinson (1973), the Court held that in the case of a lawful custodial arrest, a full search of the person is not only an exception to the warrant requirement of the Fourth Amendment but is also reasonable under that Amendment. The Court applied the same rule in Gustafson v. Florida (1973), involving a search of a motorist's person following his custodial arrest for an offense for which a citation would normally have been issued. Soon after, in United States v. Edwards (1974), the Court upheld the conduct of a similar search at the place of detention, even after a time lapse between the arrest and search.
In Arizona v. Gant (2009), the Court ruled that law enforcement officers may search automobiles following an arrest only if the arrestee "could have accessed his car at the time of the search." In other words, if the person arrested could reach into their car for a weapon, a search based on officer safety is permitted. Absent these circumstances, officers may not "search [a car] incident to arrest" unless there is a reason to believe the vehicle contains evidence of the offense of arrest.
In Birchfield v. North Dakota (2016), the Court examined whether compulsory breath and blood tests administered to determine the blood alcohol concentration (BAC) of a driver arrested for suspected "drunk driving" are unreasonable under the search incident to arrest exception to the Fourth Amendment's warrant requirement. The Court relied on a general balancing approach, weighing individual privacy interests against legitimate state interests. The Court concluded that the Fourth Amendment permits warrantless breath tests incident to arrests for drunk driving because the "impact of breath tests on privacy is slight," while the "need for BAC testing is great."
In Riley v. California (2014), the Court distinguished between a search of cell phones, which contain vast quantities of personal data, and the limited physical search at issue in Robinson. The Court noted that other means exist to secure data from a cell phone, such as turning the phone off or placing it in a bag that isolates it from radio waves. Thus, the Court declined to extend the holding of Robinson to the search of digital data contained in a cell phone found on an arrestee.
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Arrest without a warrant
An arrest without a warrant, also known as a citizen's arrest, is when a person is taken into custody by law enforcement without a written order from a judge. In the United States, a private citizen may arrest another without a warrant for a crime occurring in their presence. The laws regarding citizen's arrest vary by state. For example, in Pennsylvania, a non-law enforcement officer cannot make an arrest for a "summary offense", while in North Carolina, there is no de jure "citizen's arrest", although a similar concept exists under the name of "detention".
A police officer must have probable cause or a reasonable belief to make an arrest without a warrant. Probable cause is a reasonable belief in the guilt of the suspect, based on facts and information prior to the arrest. For instance, a police officer might arrest a suspect without a warrant to prevent their escape or to preserve evidence. However, a warrantless arrest may be invalidated if the police officer cannot demonstrate exigent circumstances and probable cause. The suspect arrested without a warrant is entitled to a prompt judicial determination, which is generally made within 48 hours.
In some jurisdictions, specific conditions must be met for a warrantless arrest to be lawful. For example, in Nebraska, a peace officer may arrest a person without a warrant if they have reasonable cause to believe that the person has committed a misdemeanor and will not be apprehended unless immediately arrested, may cause injury to themselves or others, may damage property, or may destroy or conceal evidence. In the Philippines, Barangay officials can conduct an arrest without a warrant when the person to be arrested has committed, is committing, or is attempting to commit an offence in their presence.
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Arrest with a warrant
In the United States, an arrest warrant may be issued by a United States magistrate judge upon the complaint of a United States attorney. The Federal Bureau of Investigation (FBI) of the Department of Justice may also serve arrest warrants. An arrest warrant may be issued for a criminal complaint, with Rule 4 of the Federal Rules of Criminal Procedure outlining the procedure.
The issuance of an arrest warrant requires "good cause" or "valid reason", which may be provided by a federal law enforcement officer or attorney for the government. This "good cause" is generally considered to be probable cause, or a reasonable belief in the guilt of the suspect. The warrant may be issued in the district where the defendant is located, and the arresting officer need not have the warrant in their possession at the time of arrest.
In the state of Texas, a person arrested under a warrant is to be taken before a magistrate of the county where the arrest takes place, or before a magistrate in any other county of the state, including the county where the warrant was issued. The magistrate may then take bail, or accept a written plea and set a fine. If the person arrested is indigent and requests legal counsel, the magistrate must appoint counsel or transmit the request to the appropriate court within 24 hours.
In the Philippines, Barangay officials are authorised to conduct arrests with a warrant under specific conditions stipulated in Philippine law. These include instances when a person has committed, is committing, or is attempting to commit an offence in their presence.
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Frequently asked questions
A citizen's arrest is an arrest made by a private citizen, or a person who is not a sworn law-enforcement official.
The common law rule of arrest, which dates back to medieval England, states that a private person may arrest another without a warrant for a crime occurring in their presence. This includes felonies, misdemeanours, or a "breach of peace".
A legal arrest requires probable cause, which is the reasonable belief of a police officer in the guilt of a suspect, based on facts and information prior to the arrest. A warrant is not always necessary for an arrest to be legitimate.
An officer must inform you of why you are being taken into custody, however, this may vary depending on the jurisdiction and circumstances of the arrest. Additionally, you must be given a Miranda warning, which outlines your rights as a suspect.
In the US, the right to make warrantless arrests is defined and limited by statutes subject to the due process guarantee of the US Constitution. For example, in California, a warrantless arrest may be made for a public offence committed in the presence of the arresting citizen. In the Philippines, Barangay officials may also conduct warrantless arrests if the person to be arrested is committing an offence in their presence.















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