The exclusionary rule prohibits unlawfully seized evidence from being used in a court of law. The rule developed from which case?

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Multiple Choice

The exclusionary rule prohibits unlawfully seized evidence from being used in a court of law. The rule developed from which case?

The key idea here is extending the exclusionary rule to state courts through incorporation of the Fourth Amendment. Mapp v. Ohio held that the Fourth Amendment’s protection against unreasonable searches and seizures applies to state governments via the Fourteenth Amendment, so evidence obtained in violation of the Fourth Amendment cannot be used in state prosecutions. This made the exclusionary rule binding in both federal and state cases, not just federal ones. Weeks v. United States established the rule at the federal level, but the question asks which case developed it for the states—that’s Mapp v. Ohio. The other listed cases cover different protections: Miranda v. Arizona deals with warnings and counsel during custodial interrogation; Katz v. United States concerns privacy expectations in surveillance; Terry v. Ohio concerns stop-and-frisk based on reasonable suspicion.

The key idea here is extending the exclusionary rule to state courts through incorporation of the Fourth Amendment. Mapp v. Ohio held that the Fourth Amendment’s protection against unreasonable searches and seizures applies to state governments via the Fourteenth Amendment, so evidence obtained in violation of the Fourth Amendment cannot be used in state prosecutions. This made the exclusionary rule binding in both federal and state cases, not just federal ones.

Weeks v. United States established the rule at the federal level, but the question asks which case developed it for the states—that’s Mapp v. Ohio. The other listed cases cover different protections: Miranda v. Arizona deals with warnings and counsel during custodial interrogation; Katz v. United States concerns privacy expectations in surveillance; Terry v. Ohio concerns stop-and-frisk based on reasonable suspicion.

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