Which of the following is a common duty performed by security guards?

Conducting regular patrols of the premises is a fundamental duty of security guards. This activity is crucial as it helps to deter potential criminal activity, maintain a visible security presence, and ensure that the environment is safe for employees, visitors, and clients. By performing these patrols, security guards can identify and address any security issues or safety hazards promptly, which is essential for the overall security management of the site they oversee.

Other roles, such as performing medical procedures, acting as a therapist, or handling accounting duties, do not typically fall within the standard responsibilities of a security guard. While security personnel may have some first aid training, the primary focus of their role is on surveillance and protection rather than direct medical intervention. Similarly, providing therapy or fulfilling accounting functions goes beyond the scope of their job description, which is primarily centered on maintaining safety and security rather than mental health support or financial management.