Final answer:
The exclusionary rule is a legal principle that prevents illegally obtained evidence from being used in a criminal trial. Its three primary purposes are to deter police misconduct, protect individuals' Fourth Amendment rights, and maintain the integrity of the judicial system.
Step-by-step explanation:
The exclusionary rule is a legal principle that prevents evidence obtained through illegal search or seizure from being used in a criminal trial. Its primary purposes are to deter police misconduct, protect individuals' Fourth Amendment rights, and maintain the integrity of the judicial system.
The first purpose of the exclusionary rule is to deter police misconduct. By excluding illegally obtained evidence, the rule incentivizes law enforcement officers to adhere to constitutional requirements when conducting searches and seizures. This helps ensure that individuals' rights are respected and promotes trust in the criminal justice system.