In what case did the exclusionary rule establish that, if evidence is obtained outside of the context of a warrant, such items must be excluded and cannot be used against someone in a court of law?

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The case of Mapp v. Ohio established the exclusionary rule, which stated that evidence obtained in violation of the Fourth Amendment's protection against unreasonable searches and seizures cannot be used in court against someone accused of a crime.

In What Case Did the Exclusionary Rule Establish That, If