One of the most important transitional phases of security cases is interrogation phase and this important phase as a cener of gravity for intelligence data aggregation which resulted in judicial orders enjoy a great significance. Nevertheless, ignoring importance of legislative procedure, final conduct of security agencies despite of extraordinary endeavor is in vain, which resulted in emerging problems in or out of organization for example demotivating personnel for prosecuting cases, insolence of defendants as well as tarnishing security of society. The goal of current study is drawing a favorite geometry included acceptable principles and maneuvers for legislator aiming changing intelligence activities to the acceptable criminal principles.Main question of this study is what are the acceptable principles of criminal interrogation in IRI? This study used descriptive-analytical method which analyzed the topic by library studying and concluding of data in an argumentative method. Results of study by formal research and correcting interrogation phases indicates topical classification method of security offences and substantial separation interrogation of these offensive topics and finally presents some recommendations for upgrading guidance of criminal operation of security and intelligence cases.