Which amendment was at the center of the Mapp vs. Ohio case?

The Mapp v. Ohio case centered on the Fourth Amendment, which protects individuals from unreasonable searches and seizures by the government. In this landmark case, the Supreme Court ruled that evidence obtained through a violation of the Fourth Amendment cannot be used in state courts. This ruling was significant because it reinforced the exclusionary rule, which mandates that illegally obtained evidence is inadmissible in court. The case involved law enforcement conducting a search of Dollree Mapp’s home without a proper warrant, leading to the discovery of illegal materials. The Supreme Court's decision ultimately extended the protections of the Fourth Amendment to state law enforcement, ensuring that citizens' rights are upheld regardless of whether the authorities are local, state, or federal.