Evidence Studies of Subjects in Iranian Criminal Law

After understanding the legal precepts and their subjects, the stage of adaption of law concepts with its evidences and external criterion is among the basic topics that have been improperly intermingled with the first stage. Judgments come from the decision on aspects of law subjects, thus, this understanding helps the judge to adjudicate correctly. In this paper, two aspects of the adaption based on intellect and custom are reviewed to prove that the custom leads to correct adjudication. In the court of Iran a decision should be made on the forming of a group such as jury to help the judge for realizing the custom.