Background and purpose: One of the main concerns of Iran's criminal policy is the problem of persistence in the delinquency of professional and experienced criminals, which is the main goal of this research to study Iran's criminal policy in their process.

Method: The current research is applied in terms of its purpose and in terms of the type of method, it is mixed with qualitative-quantitative method, so that in the first stage, by identifying the factors through document study, their verification was done based on the Delphi method. The research community in the Delphi section is the academic staff and experimental elites of the Criminal Intelligence Center in the control section of professional and experienced criminals, 20 people were selected in a targeted manner, and in the survey section, 217 people were from criminal intelligence assistant detectives, investigative officers, and employees of the internal departments of the police. and structural method and its reliability was confirmed using Cronbach's and combined alpha (0.72 to 0.85). By using the third version of SmartPLS software, the strengths, weaknesses, opportunities and threats of Iran's criminal policy in controlling professional criminals with a history were confirmed.

Findings: In total, 5 items for strengths, 6 items for weaknesses, 8 items for threat factors and 7 items for opportunity factors were confirmed. Among the internal factors (strengths and weaknesses), the factor of classifying criminals with emphasis on judicial-police criteria, including "nature of crimes", "quality of committing", "psychological states" and "number of records" in order to facilitate the operation of intensifying monitoring measures and surveillance has the highest priority, and among the external factors, the lack of a codified operational plan to identify, categorize and control professional and experienced criminals are the most prioritized indicators.