What action should be taken if a security guard finds a sealed bag left unattended?

When a security guard encounters a sealed bag left unattended, notifying a supervisor or appropriate authority is the most responsible action to take. This ensures that the situation is handled by trained personnel who can assess the potential risks involved, which may include security threats or suspicious items.

Opening the bag could pose safety risks, as it may contain hazardous materials or contraband, and handling it without the proper precautions could lead to dangerous situations. Additionally, leaving the bag and walking away does not resolve the potential risk it presents to the public or the property. Taking the bag home poses significant legal and safety concerns; the item may be property belonging to someone else or potentially dangerous, and removing it from the scene could interfere with investigations.

By notifying a supervisor or the appropriate authorities, the security guard helps ensure that the situation is assessed and addressed in a manner that prioritizes safety and security protocols. This course of action aligns with best practices in security procedures and risk management.