Warden, Maryland Penitentiary v. Hayden

We review in this case the validity of the proposition that there is under the Fourth Amendment a “distinction *296between merely evidentiary materials, on the one hand, which may not be seized either under the authority of a search warrant or during the course of a search incident to arrest, and on the other hand, those objects which may validly be seized including the instrumentalities and means by which a crime is committed, the fruits of crime such as stolen property, weapons by which escape of the person arrested might be effected, and property the possession of which is a crime.” 1

A…