Which of the following is NOT an organizational mandate of the National Bureau of Investigation?

The correct choice, which identifies an option that is not an organizational mandate of the National Bureau of Investigation (NBI), is the issuance of firearms-related licenses, permits, and the regulation of the private security industry. This function typically falls under different governmental bodies, such as the Philippine National Police (PNP) or other regulatory agencies that focus specifically on firearms regulation and the private security sector.

The NBI is primarily focused on investigating crimes of national significance, such as financial crimes, which aligns with options that involve criminal records and databases, national interest crimes, and financial offenses. Its mandates involve criminal investigations, gathering intelligence related to serious offenses, and collaboration with other law enforcement agencies. Therefore, the issuance of licenses and permits, particularly in relation to firearms and private security, does not fit within the core responsibilities of the NBI, making it the correct choice.