Arrest vs. Detention: How to Tell Whether You’ve Been Arrested or Simply Detained

It’s possible for the police to arrest you—intentionally or not—before saying that you’re under arrest.

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You’re walking down the street when a police officer orders you to halt and begins asking you questions. You’re pretty sure that you’re not free to leave. Does that mean that you’ve been arrested, or are you simply being detained?

In general, if a reasonable person in the suspect’s shoes wouldn’t feel free to leave an encounter with the police, then there’s been either a detention or an arrest. Determining which can be tough—and sometimes crucial. Suppose, for instance, that an officer has reasonable suspicion to detain someone, but not probable cause to arrest her. In the course of the encounter, the officer discovers incriminating evidence. In this situation, if the defense attorney persuades the court that, instead of merely detaining her, the officer arrested the suspect without probable cause, then the evidence may be inadmissible in court.

(For information about the level of suspicion police officers must have in order to detain or arrest, see What’s the difference between an arrest and a detention or “stop and frisk”?)

Detentions and Arrests

An officer’s “brief and cursory” holding and questioning someone is a detention. An example is a cop stopping someone who is behaving suspiciously in order to ask a few questions. The suspect isn’t free to leave, but he also isn’t under arrest, at least until the officer develops probable cause. Another common example is an officer pulling over a driver for some kind of traffic or equipment violation.

An arrest, on the other hand, involves the police taking someone into custody through a more significant restraint on movement. The quintessential example involves the use of handcuffs and an advisement that the suspect is under arrest. (See How do I know if I’ve been arrested?)

Brief and Cursory?

Investigatory stops (or “detentions”) must be no longer than necessary and officers must investigate with the least intrusive means that are reasonably available. When an officer prolongs a detention beyond what is brief and cursory and broadens it, then the detention may turn into a de facto arrest—that is, an actual but not official arrest.

If a reasonable person in the suspect’s position would have considered the police’s behavior to constitute the kind of restraint that’s typical of formal arrest, then an arrest has occurred. Some courts phrase the issue as depending on whether, after brief questioning, a reasonable innocent person would have felt free to leave—if not, there’s been an arrest. (Johnson v. Bay Area Rapid Transit Dist., 724 F.3d 1159 (9th Cir. 2013).)

No Bright Line

Courts consider a variety of factors in determining whether a detention has ripened into an arrest, among them:

  • the amount of force the police used
  • the need for use of force
  • the number of officers involved
  • whether officers suspected the suspect of being armed
  • the manner in which officers physically handled the suspect (including the use of handcuffs), and
  • the length of the stop.

(U.S. v. Vargas, 369 F.3d 98 (2d Cir. 2004), In re Hoch, 82 A.3d 1167 (Vt. 2013).)

Although the extent to which officers restrain and intrude upon the suspect are key to the determination, there’s no bright line indicating the point at which a detention becomes an arrest. For instance, the use of handcuffs doesn’t automatically signal an arrest where there are concerns for officer or public safety.

In one case, officers handcuffed a suspect and placed him in the back of a squad car while they searched a house he had just visited. The appeals court held that their actions didn’t turn the detention into an arrest because they needed to avoid an escape attempt and to take precautions against potential violence. The court also found that it made sense to take the suspect back to the house because they knew that the search they were about to begin could implicate him. (United States v. Bullock, 632 F.3d 1004 (7th Cir. 2011).)

by: , Attorney

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