Investigating the unity or duality of the penal system in the context of legislative criminal policy

The introduction of the philosophical concept of "algebra" into the field of criminal law due to the changes resulting from the school of research along with "authority" led to "punishment" as the most traditional type of guarantee of criminal execution, "social defense measures" and "measures". "Security" should also be included in the vocabulary of this field of law as one of the new facilities of criminal law. This challenge, which was accompanied by a spark of political opinion, created a difference in the choice of the type of criminal response, which is later referred to as the "unity of the penal system" and the "duality of the penal system." In the legislative sphere, in the Islamic Penal Code of 1392, the legislator, on the one hand, by repealing the Law on Security and Educational Measures of 1339 and allocating these measures to the crimes of children, adolescents and the free, and on the other hand, expanding additional punishments that sometimes have the nature of security measures. Has complied with the procedure of the French Penal Code 2005. This action has created the scandal of creating a unified penal system and related criminal policy; This means that the legislature has placed criminals under a system of punishment by limiting the scope of security measures to control them. The issue is different in the penitentiary system, which allows the reaction against criminal talent. Depending on the act, the degree of severity, the heinousness and the manner in which it was committed,