Final answer:
The DILG and NAPOLCOM work together in the governance and administration of the Philippine National Police with the DILG Secretary serving as the Chairman of NAPOLCOM, ensuring centralized and local oversight.
Step-by-step explanation:
The relationship between the Department of the Interior and Local Government (DILG) and the National Police Commission (NAPOLCOM) is rooted in governance and administration of the Philippine National Police (PNP). The DILG handles administrative control over local governments, including local police forces, whereas NAPOLCOM is tasked with administratively controlling and managing the PNP, and is responsible for police appointments, promotions, and discipline. A key aspect of this relationship is that the Chairman of NAPOLCOM is the Secretary of the DILG, solidifying the link and oversight role the DILG has over the PNP. This integration ensures that local police are not only accountable to the national body but also to local government structures.