Subjectivity and Proof of Crime in the Islamic Penal Code Approved in 2012

Evidence to prove a crime is a set of elements that are used in judicial authorities to prove a claim. Article 166 of the Constitution says in these cases: Court rulings must be documented based on legal articles and principles, and the ruling was issued on the basis of that ruling. An important role Presenting the reason and its relevance in legal issues and dealing with judicial cases in the courts is of great importance, which has been discussed in the proofs of the lawsuit. The importance of the relevance of the reason in the civil procedure is as far as it is said "right without reason, It is like a commodity with no value" and "it is proof that revives the right". But the important question that is raised in this regard is what is the issue of evidence in proving a lawsuit?  In order to determine the issue of reason, the question must first be answered, what is proved by reason? In order to answer this question, in this research, we will investigate the subjectivity and proofs of the crime in the Islamic Penal Code approved in 2013 using a descriptive-analytical method and based on library sources. The findings of this study show that in Iranian criminal law, evidence is the subject of the Islamic Penal Code of 2012, and according to it, the judge is required to issue a sentence based on it.