What is an "active shooter" situation?

An "active shooter" situation refers specifically to an emergency where an individual, or sometimes individuals, are engaged in a violent act, typically involving firearms, and posing an immediate threat to others. In these situations, the focus is on the immediate danger that the shooter presents, often leading to urgent law enforcement responses aimed at neutralizing the threat and protecting potential victims.

Understanding this definition is critical in emergency response training, as it emphasizes the need for quick action and awareness in such high-stress scenarios. This type of situation is distinct from fire incidents, natural disasters, or environmental hazards, which have different characteristics, causes, and response protocols. The primary focus in an active shooter scenario is on managing the violent act rather than addressing environmental or fire-related causes.