Which of the following is NOT one of the four priorities of actions during an active shooter incident?

During an active shooter incident, the response is typically guided by a set of established priorities aimed at minimizing harm and preserving life. The core priorities of action generally include immediate efforts to stop the active shooter, assess and provide medical assistance to those injured, and preserve the scene of the crime for investigation.

The option regarding evacuating all people in the vicinity, while important in certain contexts, is not typically a priority during the initial moments of an active shooter incident. The focus in such situations is on immediate threat neutralization and care for the injured rather than a blanket evacuation. It is essential to prioritize stopping the shooter and ensuring the safety of victims present in the vicinity before organizing a wider evacuation.

Therefore, while evacuation may become necessary as the situation evolves and if it is safe to do so, it does not hold the same immediate priority as the other key actions listed. The essence of the response prioritization is to secure the area, aid the injured, and preserve the integrity of the crime scene for law enforcement, rather than to initiate sweeping evacuations amidst the chaos of an active threat.