Weeks v. United States

Officers arrested Weeks (defendant), then, using a spare key a neighbor disclosed, entered and searched his home without a warrant, seizing papers later turned over to U.S. marshals. Officers later returned, again without a warrant, and seized additional letters and envelopes. This evidence was used to convict Weeks of mail fraud, and he unsuccessfully petitioned the district court to return the seized property.

Whether a warrantless seizure of items from a private residence constitutes a Fourth Amendment violation.