Which of the following is NOT a duty of a security guard?

Conducting background checks is not typically a duty assigned to security guards. Instead, background checks are generally performed by specific personnel within an organization, such as human resources or investigative teams, who are trained and authorized to evaluate an individual's history, qualifications, and suitability for a particular role or access level.

On the other hand, deterring criminal activity, enforcing regulations, and protecting property and individuals are core responsibilities of security guards. Their primary purpose is to create a safe environment through visible presence and proactive measures, which includes monitoring activities, intervening in suspicious behavior, and ensuring compliance with applicable regulations and policies. These duties emphasize the role of security guards in maintaining safety and security in various settings.