Which amendment primarily addresses issues in Mapp v. Ohio?

The Fourth Amendment is central to the case of Mapp v. Ohio because it protects individuals from unreasonable searches and seizures. In this landmark decision, the Supreme Court ruled that evidence obtained in violation of the Fourth Amendment cannot be used in state courts. The case arose when police unlawfully entered Dollree Mapp's home without a proper warrant, leading to the discovery of materials that were used against her in court. The decision reinforced the exclusionary rule, which aims to deter police misconduct and protect citizens' rights to privacy and security in their homes. This case significantly impacted the interpretation and application of the Fourth Amendment, extending its protections to state actions as well as federal.