What is the term for the practice of disregarding illegally obtained evidence?

The exclusionary rule is a legal principle that prohibits the use of evidence obtained in violation of a person's constitutional rights, particularly during unreasonable searches and seizures. This rule is aimed at maintaining the integrity of the judicial system by ensuring that law enforcement agencies do not benefit from their illegal actions. When evidence is gathered in violation of the Fourth Amendment, which protects against unreasonable searches and seizures, such evidence cannot be used in court to convict a defendant. This rule serves as a crucial check on police power and helps to uphold individual rights.

The other options relate to different legal doctrines or requirements. The silver platter doctrine refers to a now-defunct principle that allowed federal authorities to use evidence gathered illegally by state officers, the McNabb-Mallory rule pertains to the timely arraignment of arrested individuals, and the Miranda rule focuses on informing individuals of their rights during custodial interrogation. Each of these principles addresses specific aspects of legal procedures but does not focus on the general prohibition of using illegally obtained evidence like the exclusionary rule does.