In today's world, with the increasing complexity of security threats, the traditional and classic model of security governance has lost its effectiveness, and the need to move towards "good security governance" based on community interaction and participation is felt more than ever. This research aims to evaluate the performance of the police in ensuring public security in Iran since the 1980s, identify challenges, and provide improvement solutions. The study was conducted using a qualitative field method and semi-structured open-ended questionnaires, and its statistical population consisted of 40 academic experts and senior police managers and commanders who were selected purposefully. After coding, the data were analyzed using the content analysis method. The findings show that the police's performance in operational and law enforcement areas such as controlling violent crimes, managing ethnic-local conflicts, and election security was acceptable, but there are weaknesses in social and software areas such as protest management, social prevention, public communications, and knowledge-based security. The most important suggestions include transitioning to participatory and preventive approaches, strengthening dialogue and mediation, improving police knowledge and professional ethics, and reducing political interference by parallel institutions.