A citizen’s arrest occurs when a private person, rather than a police officer acting in an official capacity, attempts to take another person into custody under a legal power recognized by the jurisdiction. It is an old concept in American law, but its modern scope is narrow, uneven, and sometimes misunderstood. Seeing suspicious behavior does not automatically authorize a bystander to restrain someone, and a private person has no general police powers.
Whether a citizen’s arrest is lawful depends on the state, the seriousness of the suspected offense, what the person actually witnessed or reasonably knew, and how the attempted detention was carried out. Some states retain statutes describing limited arrest authority. Others have replaced broader rules with specific detention privileges for store employees or security personnel. An error can expose the person making the arrest to criminal charges or a civil lawsuit. Calling law enforcement and providing accurate observations is usually the safer response.

When Can a Private Person Make an Arrest?
There is no single nationwide citizen’s arrest rule. In California, Penal Code section 837 permits a private person to arrest in specified circumstances, including a public offense committed or attempted in that person’s presence and certain situations involving felonies. The exact legal conditions matter: a suspicion about something that happened elsewhere may not satisfy a rule requiring personal observation.
Even where a statute permits an arrest, the arresting person must have an adequate factual basis. A mistaken accusation, poor identification, or force beyond what the law allows can turn an attempted intervention into unlawful detention or assault. A citizen’s arrest is not a license to investigate, search property, punish a suspect, or compel a confession.
How State Laws Differ: California and Georgia
California retains express statutory language governing a private person’s arrest. Its framework distinguishes an offense committed in the person’s presence from particular felony circumstances. A claim that a crime occurred should not be confused with proof that all legal requirements for private detention were met.
Georgia took a different approach. In May 2021, the state enacted House Bill 479, repealing its broad citizen’s arrest statute after widespread scrutiny following Ahmaud Arbery’s killing. Georgia preserved more limited detention authority for specified settings, including certain retail and restaurant situations and licensed security-related activities. The law places conditions on those detentions; it did not confer unrestricted arrest powers on ordinary bystanders. State law may continue to recognize separate defenses of self-defense or defense of property, but those defenses do not create a general power to arrest someone.
Citizen’s Arrest Versus Shopkeeper’s Privilege
A shopkeeper’s privilege generally concerns a merchant’s limited authority to detain a person reasonably suspected of theft for an appropriate purpose and period, subject to state requirements. It should not be equated with a broad citizen’s arrest power. The lawful reason for the detention, its duration, the person conducting it, and the degree of force permitted may all differ.
Private security staff also operate within state licensing rules and statutory limits. Wearing a uniform or working for a store does not automatically grant a security employee the authority of a police officer.
What Are the Legal Risks?
An unlawful restraint may lead to allegations of false imprisonment, assault, battery, or other offenses. The detained person may pursue a civil claim for injury or unlawful loss of freedom. Even a detention that begins with a reasonable concern can become unlawful if it continues too long or involves disproportionate force. Weapons and physical confrontations raise the risk of serious injury.
A private person should also avoid treating a social-media video or unverified allegation as a reliable basis for arrest. Legal protections and consequences depend on the facts, and courts decide whether an asserted privilege actually applied.
What to Do When Witnessing a Suspected Crime
If there is immediate danger, contact emergency services and follow dispatch instructions. Otherwise, report what happened, provide a location and description, and preserve any lawful evidence without putting others at risk. Do not chase, threaten, search, or physically hold someone merely because a crime is suspected. Anyone considering an intervention should understand the law of the particular state, including whether it authorizes a private detention at all.