What is the primary purpose of the Exclusionary Rule?

• A. To codify search warrant procedures
• B. To deter police misconduct by excluding illegally obtained evidence
• C. To guarantee quick trials
• D. To allow admission of all evidence

Answer: (B)

The primary purpose is to deter police misconduct by excluding evidence that was illegally obtained. When a search or seizure violates the Fourth Amendment, the exclusionary rule keeps that evidence out of court, encouraging law enforcement to follow lawful procedures. This protection of constitutional rights is reinforced by landmark rulings that extended the rule from federal cases to the states, underscoring that improperly obtained material should not be used to secure a conviction. There are limited exceptions where evidence may still be admitted, such as when investigators relied in good faith on a warrant later found to be defective, but these do not change the fundamental aim: to prevent violations by withholding the benefit of evidence gained through unlawful means. It’s not about codifying warrant procedures, guaranteeing quick trials, or allowing all evidence to be admitted.