Final answer:
Anyone from the public, supervisors, and police have the right to request a security guard to produce their license, ensuring transparency and accountability within the security industry.
Step-by-step explanation:
In the context of security operations, there are specific regulations regarding identification and licensing of security personnel. When it comes to the authority to request a security guard to produce their license, it is generally accepted that this can be done by multiple parties. The most common entities who may ask a security guard to produce their license include their supervisor, the police, and indeed anyone from the public has the right to ask for this credential as a measure of ensuring that the guard is properly authorized and trained to perform their duties. It's part of transparency and accountability measures within the security industry to build trust among the public and maintain professional standards.