What is a primary function of a security guard while on patrol?

A primary function of a security guard while on patrol is to actively monitor for suspicious activity. This role is vital because the security guard's presence serves as a deterrent to potential criminal activity and enhances the overall safety of the area they are responsible for. By being vigilant and attentive during their patrols, security guards can identify and address unusual behaviors, unauthorized individuals, or situations that might pose a security threat, thus enabling them to respond promptly and appropriately.

Monitoring for suspicious activity involves not only observing the environment but also being able to assess behaviors that may indicate a risk, such as loitering near sensitive areas, unauthorized access to restricted zones, or any other irregularities that could compromise security. This proactive approach is essential in maintaining a secure environment for employees and visitors alike. The other options, while potentially relevant to various aspects of security work, do not represent the primary responsibility of a guard during patrol duties.