What must a security officer carry while on duty?

A security officer is required to carry their security license and identification while on duty to ensure that they are recognized as authorized personnel and to demonstrate their compliance with state regulations. This documentation is crucial for establishing credibility and accountability in their role, as it allows them to prove their qualifications and authority when interacting with the public or law enforcement.

While the other items mentioned, such as a firearm, handcuffing device, or extra clothing, may be relevant in certain contexts or for specific job functions, they are not universally mandated for a security officer. The primary focus is on the necessity of having valid identification and a license, which confirms the officer's legal right to perform their duties and provides reassurance to those they are protecting.