What does the exclusionary rule prevent?

The exclusionary rule is a legal principle that prevents evidence obtained through illegal means from being introduced in court. This rule is based on the idea that allowing such evidence would undermine the judicial process and the integrity of the law. It aims to deter law enforcement from conducting unreasonable searches and seizures in violation of the Fourth Amendment.

By excluding evidence that has been illegally obtained, the judicial system strives to uphold constitutional rights and ensure that legal procedures are followed. This not only protects individuals from unjust prosecution but also promotes accountability among law enforcement agencies, reinforcing the importance of following legal protocols when gathering evidence.

The other options involve various legal principles and rights related to the judicial process but do not accurately encompass the main function of the exclusionary rule as it specifically pertains to evidence gathered in violation of constitutional protections.