Which of the following best describes a proprietary security officer?

A proprietary security officer is best described as an unarmed guard working exclusively for a single employer. This definition highlights the key characteristic of proprietary security officers: their dedication to one organization, ensuring that they focus on the specific security needs and operations of that employer. These officers are typically in-house personnel who understand the unique environment and risks associated with their employer’s business, allowing them to provide tailored security solutions.

This role contrasts with other options presented. For example, an armed guard working for multiple companies does not fit the proprietary model, as they would not be exclusively tied to one employer but rather serve a broad range of clients. Similarly, a contractor providing security services does not work solely for one entity but instead operates independently, servicing multiple clients. Lastly, an officer employed by the government falls outside the realm of proprietary security, as this position is associated with public law enforcement rather than private security roles.