This study aims to analyze the implementation of ontology, epistemology, and axiology in the leadership of the Sector Police Chief (Kapolsek) regarding law enforcement practices at the Jelutung Sector Police in Jambi City. The study employs a qualitative approach with a case study design. Data were obtained through in-depth interviews with leadership and police personnel involved in law enforcement, observations of leadership practices and police services, and an analysis of documents related to police duties at the Jelutung Sector Police. Data analysis utilized the interactive model developed by Miles, Huberman, and SaldaƱa, comprising data condensation, data display, and conclusion drawing and verification. The results indicate that the ontological dimension is reflected in the Sector Police Chief's understanding of the essence of police duties: acting as protectors, guardians, and servants of the community, as well as law enforcers. The epistemological dimension is manifested through decision-making based on facts, verified information, evidence, legal procedures, and analysis of field situations. Meanwhile, the axiological dimension is reflected in a leadership orientation that prioritizes justice, utility, legal certainty, professionalism, integrity, and humane public service. The integration of these three dimensions shapes a leadership style that is more objective, responsive, accountable, and oriented toward just law enforcement. This study reinforces the application of the philosophy of science perspective within the study of police leadership and law enforcement practices at the sector police level.