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If you google each word and the word "rule", you will have your answer. I think that's the best answer you could receive as most likely anyone here would only be able to answer your question for sure by googling it themselves.
a rule that forbids the introduction of illegally obtained evidence in a criminal trial.
Exclusionary rule. A defendant's 4th Amendment rights to freedom from illegal search and seizure are protected by this rule. A police officer may illegally obtain evidence--e.g. search your home without a warrant (or exception)--but the evidence found in your home can't be held against you at trial.