What is the purpose of the "exclusionary rule"?

The exclusionary rule serves a crucial function in the legal system by prohibiting the use of evidence that has been obtained in violation of a defendant's constitutional rights, particularly those protected by the Fourth Amendment, which guards against unreasonable searches and seizures. This rule is designed to deter law enforcement from engaging in unlawful practices and to uphold the integrity of the judicial process.

By disallowing the introduction of illegally obtained evidence in court, the exclusionary rule aims to protect individuals from government overreach and to ensure that justice is served fairly. It reinforces the vital principle that the ends do not justify the means when it comes to gathering evidence for a prosecution. As a result, the exclusionary rule is pivotal in fostering a respect for constitutional rights and maintaining public confidence in the legal system.