Article 9 of the Islamic Penal Code is of interest from two points of view. First, it can be considered as a provision to grant international jurisdiction to national courts and as a reason for prosecuting the perpetrators of international crimes inside the country, and secondly Article 9 of the Civil Code is a tool for introducing the notion of self executing international regulations in domestic legal system of Iran. In this research, it has been tried to prove by descriptive-analytical method that the said article is ineffective despite granting universal jurisdiction to national courts. Based on this, some suggestions are provided to overcome this problem. Nevertheless, this article has a more progressive approach compared to Article 9 of the Civil Law because it is out of the framework of commitment to treaty obligations and pays attention to the provisions of general international law.