One of the most controversial, and perhaps,most important American legal principle, is the exclusionary clause which under Constitutional law, holds that evidence collected or analyzed in violation of defendants constitutional rights is not permitted for use in criminal persecutions. Sparked by the famous case Mapp v. Ohio, the exclusionary rule has a fair share of critics who argue that police blunders let criminals go free. In the 1961 Supreme Court case, Dollree Mapp was convicted when police searched her house ,under a false warrant, for a suspected bomb fugitive and found “lewd, lavicious, or obscene material”, otherwise known as pornography. Mapp claimed the police had no probable cause to search for the obscene materials found; the Court let her go because the material had been seized without a warrant. Despite the occasional occurrence of criminals going free, the exclusionary rule is vital to democracy because the principle ensures liberty and justice in America for all.…