During a late-night patrol of a residential complex, a security guard observes an open ground-floor window on a unit known to be currently vacant. No signs of forced entry are evident. What is the guard's primary responsibility?

Question: During a late-night patrol of a residential complex, a security guard observes an open ground-floor window on a unit known to be currently vacant. No signs of forced entry are evident. What is the guard's primary responsibility?

Answer options:

• Enter the unit to secure the window and check for intruders. ✅ Notify law enforcement and property management of the unsecured window and potential breach.
• Close the window swiftly to prevent further unauthorized access.
• Take a photograph of the open window for the incident report and continue the patrol.

Correct answer: Notify law enforcement and property management of the unsecured window and potential breach.

Explanation: An open window in a vacant unit suggests a potential security breach. The guard's primary duty is to observe and report to the appropriate authorities, such as law enforcement and property management, rather than entering a potentially compromised scene themselves. Direct intervention could expose the guard to unknown risks or compromise a potential crime scene.