This study explores how effective oversight can enhance the utilization of state apparatus for achieving good and clean governance, specifically focusing on the role of regional inspectorates in preventing corruption within regional police departments. The study aims to: 1) analyze why current regulations regarding the regional inspectorate's role in corruption prevention are not based on justice values; 2) identify challenges in these regulations; and 3) propose a reconstruction of the regulations to align with justice values. Using a constructivist paradigm, a socio-legal approach, and descriptive research methods, the study relies on secondary data sources, including primary, secondary, and tertiary legal materials. Data collection is conducted through a literature review, and qualitative analysis is employed for data interpretation. The findings reveal that the current regulation is not justice-aligned due to the supervisory function of the Regional Inspectorate (Itwasda) being under the authority of the Regional Police Chief (Kapolda), rather than the National Police Chief (Kapolri). This structure limits the effectiveness of oversight and suggests the need for a direct reporting line to National Police Chief. Challenges in the existing framework include a lack of specific legal guidelines governing the inspectorate's role in corruption prevention and insufficient synergy between organizational sections and Supervision Inspectorate. Furthermore, there is a cultural reluctance to report corruption. The study proposes reconstructing the regulation to ensure a justice-based framework, including normative revisions to relevant laws and regulations, such as Law No. 20 of 2001 on the Amendment of Law No. 31 of 1999 on Corruption Eradication, and Indonesian National Police Regulation No. 14 of 2018. This reconstruction aims to establish a clearer, more effective oversight mechanism that enhances the inspectorate's role in corruption prevention.