What is an essential component of an immediate action plan after an engagement?

Securing the scene is a critical component of an immediate action plan after an engagement during an active shooter incident. This step is vital because it ensures the safety of first responders and bystanders, preventing further chaos or potential harm. Securing the scene involves establishing a perimeter, allowing for controlled access, and ensuring that the area is free from additional threats. This foundational step enables other actions, such as gathering evidence and conducting investigations, to be carried out effectively and safely.

While gathering intelligence, interrogating witnesses, and documenting the incident are important for the overall understanding and response to the incident, these actions are only effective if the scene is properly secured first. Without securing the area, responders could inadvertently expose themselves and others to danger or compromise the integrity of the scene, potentially hindering the investigation and response efforts.