What is the first action a security officer should take upon receiving a bomb threat?

The first action a security officer should take upon receiving a bomb threat is to call 911. This step is crucial because law enforcement agencies are equipped and trained to handle bomb threats and potential explosive devices. By notifying the authorities immediately, the officer ensures that professionals can assess the situation, coordinate a response, and implement necessary safety measures.

Calling 911 initiates the emergency response process, potentially saving lives and minimizing harm. The trained personnel can then provide guidance on the next steps while the situation is assessed. While other actions like evacuating the premises or alerting a supervisor may also be necessary soon after, the priority is to ensure that the proper authorities are informed as quickly as possible. Delaying this notification could lead to disastrous consequences, as immediate professional intervention is vital in these potentially life-threatening scenarios.