Which of the following is NOT a power or function of the PNP?

The option indicating that the PNP enforces laws related to the protection of lives and properties of authority only is not a power or function of the Philippine National Police (PNP). The PNP's mandate extends beyond merely protecting the lives and properties of those in authority; it encompasses the protection of all citizens and their properties, striving for public safety and order. The PNP is responsible for maintaining peace and enforcing laws for the welfare of the entire community, not just a select group.

This broader responsibility is reflected in the other options, which accurately describe functions of the PNP. Supervising the training and operations of security agencies is essential for ensuring that private security aligns with national laws. Issuing licenses for firearm possession is a critical regulatory function that allows the PNP to monitor and control the use of potentially dangerous weapons. Making arrests, searches, and seizures according to legal protocols is fundamental to law enforcement. These activities illustrate the PNP's comprehensive role in upholding justice and public safety across the entire populace.