Basic purpose of this article is to Discuss on the Exclusionary Rule. The exclusionary rule is often a judge‐made rule that evidence obtained through the government in violation of your defendant’s constitutional rights cannot be used against him or her. By filing a motion to suppress prior to the trial asking the judge to rule the research as inadmissible, a defendant may prevent the prosecution from using illegally obtained evidence. The exclusionary rule usually is true of suppression of physical evidence that the police seize in violation of your defendant’s Fourth Amendment right not to encounter unreasonable search and seizure.