On August 8, 1975, Presidential Decree 765 officially established the joint command structure of the Philippine Constabulary and Integrated National Police.

The arrangement became known as the Philippine Constabulary-Integrated National Police (PC-INP), and INP became also an element of the Armed Forces since it was then under supervision of the Constabulary.

The Integrated National Police was the subject of criticism, and officers were accused of involvement in illegal activities, violent acts and abuse, with corruption being a frequent charge.

To save their public image, the government sponsored highly publicised programs to identify and punish police offenders, and training designed to raise their standard of appearance, conduct, and performance.

1184 (the Integrated National Police Personnel Professionalization Law of 1977) issued by then-President Ferdinand Marcos[6] as part of the joint command it shared with the PC, which began in 1975.