What is the purpose of the "exclusionary rule"?

The purpose of the exclusionary rule is to prevent illegally obtained evidence from being used in court. This legal principle aims to deter law enforcement from violating individuals' constitutional rights, particularly the Fourth Amendment protection against unreasonable searches and seizures. When evidence is obtained in violation of a person's rights, the exclusionary rule serves to exclude that evidence from being presented in a trial, thus upholding the integrity of the judicial process and protecting citizens from unlawful government actions. This rule reinforces the importance of following proper legal procedures to ensure that justice is administered fairly and equitably. Therefore, option B accurately reflects the primary function of the exclusionary rule in the legal system.