What act established the Philippine National Police under a reorganized department?

The correct response indicates that Republic Act 6975 is the legislation responsible for establishing the Philippine National Police as a reorganized entity within the Department of the Interior and Local Government. This significant act was enacted in 1990 and marked a pivotal reform in the law enforcement system of the Philippines, transitioning the administration and organization of police services to align with the needs of local government structures and to improve effectiveness in maintaining peace and order.

R.A. 6975 aimed to create a more integrated and professionalized police force, replacing the previous system that consisted of various separate and sometimes overlapping police organizations. The law helped standardize training, procedures, and recruitment processes, ultimately leading to a more efficient and accountable police service.

The other acts mentioned do not directly pertain to the establishment of the Philippine National Police under the reorganized structure of the department. For instance, R.A. 8551, while related to the police system, primarily focused on the reform and modernization of the police service after the establishment initiated by R.A. 6975. R.A. 7456 and Act 4864 also address different aspects of law enforcement and local governance but are not the foundational legislation for the Philippine National Police.