What does the exclusionary rule pertain to?

The exclusionary rule pertains specifically to evidence obtained in violation of the Fourth Amendment, which protects citizens from unreasonable searches and seizures. This legal principle serves as a safeguard for individuals' rights, ensuring that any evidence collected improperly—whether through warrantless searches, coercive interrogations, or other violations of constitutional protections—cannot be used in court to prove guilt or liability.

By enforcing the exclusionary rule, the judicial system aims to deter law enforcement from engaging in unconstitutional practices. If such evidence were allowed in court, it would undermine the integrity of the legal process and the protections guaranteed by the Constitution. This rule thus plays a critical role in maintaining lawful conduct within law enforcement and ensuring courts do not rely on evidence obtained through violations of an individual's rights.