In Maryland, what should a security guard do upon encountering a trespasser?

When encountering a trespasser, a security guard's first responsibility is to assess the situation and take appropriate action to resolve it peacefully and lawfully. Asking the trespasser to leave is a proactive approach that allows the security guard to communicate directly and establish their authority. This action can help de-escalate the situation and minimize potential conflict.

By warning the individual and requesting them to leave, the security guard is fulfilling their duty to maintain safety and security while adhering to the principles of prevention and deterrence. It is essential to avoid physical confrontation unless absolutely necessary, as this could lead to escalation and potential legal ramifications.

In this situation, calling the police might be appropriate if the individual refuses to leave or if the situation appears to be dangerous, but the initial response should be to communicate with the trespasser. Ignoring the individual could allow the situation to worsen, and physically removing the person should only be a last resort, as it can lead to injury or liability. Therefore, the most sensible and effective response in this context is to ask the trespasser to leave.