Law Commons^™

Shields, Swords, And Fulfilling The Exclusionary Rule's Deterrent Function, James L. Kainen

Faculty Scholarship

When the exclusionary rule prevents the prosecution from using evidence necessary to bring a case to trial, the rule deters illegality while raising no issue about how it might interfere with usual factfinding processes. However, when a case proceeds to trial although a court has suppressed some prosecution evidence, courts need to decide the extent to which the defendant may benefit from the absence of the proof without opening the door to its admission. The exclusion of any relevant evidence raises similar questions, and courts often say the exclusionary rule is a shield from suppressed evidence, but not a sword …