United States v. Matlock, 415 U.S. 164 (1974), was a Supreme Court of the United States case in which the Court ruled that the Fourth Amendment prohibition on unreasonable searches and seizures was not violated when the police obtained voluntary consent from a third party who possessed common authority over the premises sought to be searched.
United States v. Matlock, 415 U.S. 164 (1974), was a landmark Supreme Court case in which the Court determined that the Fourth Amendment's ban on unreasonable searches and seizures was not breached when law enforcement secured voluntary consent from an intermediary who shared control over the premises targeted for search.