What is the purpose and effect of the exclusionary rule?

• A. To provide that all evidence obtained illegally must be admitted.
• B. To deter police misconduct by excluding illegally obtained evidence.
• C. To ensure faster trials by limiting evidence.
• D. To increase the number of convictions.

Answer: (B)

The exclusionary rule is a constitutional remedy designed to deter police misconduct by excluding evidence obtained in violation of the Fourth Amendment from use in court. By keeping illegally gathered information out of the courtroom, it creates a strong incentive for law enforcement to follow proper procedures, protecting individuals’ rights and preserving the integrity of the judicial process. While there are well-known exceptions (such as good-faith reliance on a defective warrant or independent source), the core purpose is deterrence and rights protection, not speeding up trials or increasing convictions. The rule originally applied to federal cases and was later made applicable to the states through incorporation.