Frisking

Frisking (also called a patdown or pat down) is a search of a person's outer clothing wherein a person runs his or her hands along the outer garments to detect any concealed weapons.

Stop and frisk

In the U.S., a law enforcement officer may briefly detain a person upon reasonable suspicion of involvement in a crime but short of probable cause to arrest; such a detention is known as a Terry stop. When a search for weapons is also authorized, the procedure is known as a stop and frisk. To justify the stop, a law enforcement officer must be able to point to “specific and articulable facts” that would indicate to a reasonable person that a crime has been, is being, or is about to be committed. If the officer reasonably suspects that the suspect is in possession of a weapon that is of danger to the officer or others, the officer may conduct a frisking of the suspect’s outer garments to search for weapons. The search must be limited to what is necessary to discover weapons; however, pursuant to the “plain feel” doctrine, police may seize contraband discovered in the course of a frisk, but only if the contraband's identity is immediately apparent.