Mapp v. Ohio
367 U.S. 643 (1961).
Author: DK

Facts:  Officer made a forced warrant less entry into appellant’s house and discovered some lewd books and pictures.  Appellant was convicted based on this evidence.

Procedure:  The state supreme court upheld the conviction.

Issue:  Should the exclusionary rule apply to state police officers in state cases?

Holding: Yes

Rationale:  The Supreme Court in Wolff v. Colorado held that the protection of 4^th Amendment applies to states through the 14^th Amendment.  But the Court in Wolff did not enforce the exclusionary rule upon the states.  This has resulted in a mere lip service to the 4^th Amendment.  Many states have found that exclusionary rule is the only effective way to protect the 4^th Amendment rights.  Therefore, the Court held that all evidence obtained by searches and seizures in violation of the Constitution is inadmissible in state courts.