Which document is issued to identify a security officer after they receive a commission?

The correct answer is a security officer identification card. This document serves the primary purpose of identifying a security officer who has been commissioned to perform duties related to private security.

This identification card typically includes essential details such as the officer's name, photograph, the name of the security company they represent, and their commission number. This ensures that the officer is easily recognizable as a legitimate member of the security industry to the public, clients, and law enforcement if necessary.

In contrast, a badge issued by law enforcement is specific to police or governmental authorities and does not apply to private security personnel. A pocket card generally refers to a smaller card that may provide additional information but is not specifically designated to serve as identification for security officers. A uniform certificate of completion pertains to training and does not function as an identifier for a commissioned security officer.