Mapp Vs. Ohio Case Study

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The Supreme Court decision in Mapp v. Ohio was very controversial. It changed how handle evidence and forced police officers to take special precautions when obtaining evidence. In the case of Mapp, Mapp 's attorneys argued that the obscene material found in Mapp’s house had been unlawfully seized and should not be allowed as evidence. Prior to Mapp’s trial the Supreme Court had ruled in Weeks vs the United States that illegally obtained evidence was not permissible in Federal Court. But did this same principle apply to states? In Wolf vs. Colorado the Supreme Court had decided that it did not. Illegally obtained evidence could be used in trials because the 4th amendment did not apply to states. The principle became known as the exclusionary

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