Which of the following is a main duty of a security officer?

Conducting patrols is a primary duty of a security officer because it directly pertains to the officer's role in maintaining safety and security in a designated area. Patrols allow security officers to monitor for any unusual activity, potential threats, or violations of security protocols. By regularly patrolling an area, officers can deter criminal behavior, respond quickly to incidents, and ensure that the environment remains safe for individuals present.

This proactive approach not only helps in identifying and addressing security concerns but also reinforces a visible security presence that can contribute to a sense of safety among employees, customers, and visitors. In contrast, managing human resources, performing maintenance checks, and writing legal contracts fall outside the typical responsibilities of a security officer, which mainly revolve around safeguarding property and people. Therefore, conducting patrols stands out as a fundamental aspect of the security officer's duties.