Define the exclusionary rule

Exclusionary rule dictates that the evidence illegally obtained must be excluded as evidence under the Fourth Amendment

Step-by-step explanation:

The exclusionary rule is a legal rule, based on constitutional law which prevents the evidences collected in violation of the defendant's constitutional rights from being used in a court of law. The rule, during its application, dictates that the evidence which is illegally obtained must be excluded as to be used as evidence under the Fourth Amendment.