Under what condition is it appropriate for a security guard to detain an individual?

The appropriate condition for a security guard to detain an individual is when they have witnessed a crime or have reasonable suspicion. This standard is rooted in the necessity to act within the legal framework governing the authority of security personnel. Security guards are often tasked with maintaining safety and order, and part of that responsibility may involve intervening in situations that pose a threat.

Having witnessed a crime provides a concrete basis for taking action, as it indicates that a violation of the law has occurred and that there may be a need to preserve evidence or prevent further harm. Similarly, reasonable suspicion allows a guard to act based on specific, articulable facts that suggest an individual may be involved in criminal activity, without needing to meet the higher standard of probable cause that is required for law enforcement officers. This balance ensures security guards can effectively respond to potential threats while still respecting individuals' rights.

The other conditions do not provide a sufficient legal basis for detention. Checking for identification alone without a legitimate reason does not justify detention, and responding to a member of the public's request doesn't necessarily imply that there is a valid reason to detain someone. Additionally, personal feelings of discomfort do not constitute a legally acceptable criterion for detention, as actions must be based on observed facts rather than personal perceptions