When can a security officer conduct a 'frisk' on a person?

The correct response accurately reflects the legal framework governing the actions of security officers. A security officer is permitted to conduct a "frisk," which is a limited pat-down for weapons, primarily when they have either arrested an individual or have reasonable suspicion of an immediate threat. The main purpose of a frisk is to ensure that the individual does not possess any weapons that could pose a danger to the officer or others.

In this context, conducting a frisk is not justified merely based on suspicion of other activities or during standard security checks without probable cause. Prior verification of identity does not provide legal ground for a frisk either; it is specifically linked to concerns about weapons after an arrest. This limitation safeguards individuals' rights while allowing security officers to perform their necessary functions in maintaining safety.