what amendment is mapp v. ohio
The Court decided that ...all evidence obtained by searches and seizures in violation of the Constitution is, by [the Fourth Amendment], inadmissible in a state court.. Significance of Mapp v. Ohio: The Supreme Court decision in Mapp v. Ohio was quite controversial. The requirement for ensuring that evidence was legally-obtained was placed on the court. This decision would open up the court to a number of difficult cases concerning how to apply the exclusionary rule.