Which of the following are basic duties of a security guard?

The role of a security guard encompasses a variety of responsibilities that are essential for maintaining safety and security in various environments.

Patrolling sites and buildings is a fundamental duty, as it helps deter criminal activity and ensures that all areas are monitored for any suspicious behavior, which is critical for preventing incidents before they occur. This includes the authority to remove trespassers who pose a threat to property or safety, thereby protecting the premises and its occupants.

Securing evidence and making arrests also fall under the security guard's responsibilities in some jurisdictions, allowing them to respond effectively to incidents and preserve evidence that may be crucial for law enforcement. This duty reinforces the legal aspect of security, as security guards often cooperate with police during investigations.

Conducting crowd control is another essential duty, especially in places with large gatherings or events. Security guards manage the movement and behavior of crowds to prevent disturbances and ensure everyone's safety. Additionally, receiving lost property is a practical aspect of security work, as it demonstrates accountability and a commitment to assisting the public.

All of these duties are integral to a security guard’s role, showcasing their multifaceted responsibilities in maintaining order and safety, which is why the correct answer includes all of the provided options.