The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
Stop and frisk
A brief, non-intrusive, police stop of a suspect. The Fourth Amendment requires that the police have a reasonable suspicion that a crime has been, is being, or is about to be committed before stopping a suspect. If the police reasonably suspect the person is armed and dangerous, they may conduct a frisk, a quick pat-down of the person’s outer clothing. See Terry v Ohio, 392 US 1, (1967).
Definition from Nolo’s Plain-English Law Dictionary
A law enforcement officer’s brief detention, questioning, and search for a concealed weapon when the officer has reason to believe that the detainee has committed or is about to commit a crime. Any further search requires either a search warrant or probable cause to believe the suspect will commit or has committed a crime (including carrying a concealed weapon, which itself is a crime).
Definition provided by Nolo’s Plain-English Law Dictionary.
Search and Seizure
Unreasonable Search and Seizure
Mapp v. Ohio (1961)
Expectation of Privacy
Stop and Frisk
Fruit of the Poisonous Tree
Good Faith Exception to Exclusionary Rule
US Code: Title 18