The 1960 Supreme Court Term laid the groundwork for the subsequent revolution in the relationship between state and federal law accomplished by the Supreme Court under Chief Justice Earl Warren. The most famous search and seizure case in American history - Mapp v. Ohio - would be decided that Term. Mapp held that the Fourth Amendment\u27s protection against unreasonable searches and seizures required the exclusion of evidence found through an illegal search by state and local police officers, extending to the states a rule that had previously applied only to federal law enforcement. Mapp became a pivotal chapter in the story of civil rights in the United States
