Byron White

“ But the circumstances that furnish probable cause to search a particular auto for particular articles are most often unforeseeable; moreover, the opportunity to search is fleeting since a car is readily movable. Where this is true, as in Carroll and the case before us now, if an effective search is to be made at any time, either the search must be made immediately without a warrant or the car itself must be seized and held without a warrant for whatever period is necessary to obtain a warrant for the search. ”

“ We pass quickly the claim that the search of the automobile was the fruit of an unlawful arrest. Both the courts below thought the arresting officers had probable cause to make the arrest. We agree. Having talked to the teen-age observers and to the victim Kovacich, the police had ample cause to stop a light blue compact station wagon carrying four men and to arrest the occupants, one of whom was wearing a green sweater and one of whom had a trench coat with him in the car. ”

“ The principal question in this case concerns the admissibility of evidence seized from an automobile, in which petitioner was riding at the time of his arrest, after the automobile was taken to a police station and was there thoroughly searched without a warrant. The Court of Appeals for the Third Circuit found no violation of petitioner's Fourth Amendment rights. We affirm. ”