Which of the following is a criterion for reasonable suspicion?

Reasonable suspicion is a legal standard used in law enforcement that allows police to stop and briefly question a person if they have a particular reason to believe that the person may be involved in criminal activity. One of the key criteria for forming reasonable suspicion is the demeanor of the person in question.

When security personnel observe someone's behavior, certain demeanor signals—such as nervousness, evasiveness, or unusual behavior—can provide reasonable suspicion that the individual may be trying to conceal something or might be involved in criminal activity. A person's demeanor can contribute to an overall assessment of their intent or potential for wrongdoing, serving as a basis for further inquiry or intervention.

Factors like information from known third persons or the overall incidence of crime in the area provide context but do not necessarily establish reasonable suspicion on their own. Similarly, a person's proximity to a specific location, such as a client's property, may raise questions but does not, by itself, justify reasonable suspicion without additional contextual indicators.