In the United States, a Terry stop' is a brief detention of a person bypoliceIn keeping with common practice of the U.S. Supreme Court, the terms police and police officer are used throughout this article; however, a more appropriate term is peace officer (or sometimes law enforcement officer). In general, peace officers are civil employees charged with preserving the public peace and granted the authority to do so. Peace officers normally include police, sheriffs and their deputies, marshals, and often many other persons; those included vary among the states.on reasonable suspicion of involvement in criminal activity but short of probable cause to arrest.
Beginning with Terry v. Ohio, 392 U. S. 1 (1968), the Court has recognized that a law enforcement officer’s reasonable suspicion that a person may be involved in criminal activity permits the officer to stop the person for a brief time and take additional steps to......