What is the primary mission of the Bureau of Security and Investigative Services (BSIS)?

The primary mission of the Bureau of Security and Investigative Services (BSIS) is to protect the public through the regulation of the private security industry. This involves ensuring that security personnel are properly licensed and trained to provide effective services that contribute to public safety. By regulating the industry, BSIS aims to maintain standards that enhance the professionalism and reliability of security providers, thereby instilling public trust.

The other options, while related to security or training, do not encapsulate the core purpose of BSIS as effectively. Training security personnel is a component of its operations but is not the overarching mission. Similarly, overseeing law enforcement agencies and issuing firearms permits are activities that may fall under broader regulatory functions, but they are not central to the Bureau's primary focus on protecting public safety through the regulation of the private security sector.