When is a secondary search typically conducted at a fire scene?

A secondary search is conducted after the fire has been brought under control to ensure that all areas of the structure have been thoroughly checked for any potential victims or hidden fire hazards. This step is crucial for confirming the safety of the environment before allowing personnel to proceed with additional activities, such as overhaul and investigation. Conducting a secondary search at this time allows firefighters to focus on areas that may have been affected by the fire or may contain residual hazards, ensuring that all occupants are accounted for and that the risk of re-ignition is minimized.

Conducting a secondary search before the fire is controlled or during the initial attack could pose significant safety risks, as the potential for collapse or sudden flare-ups remains high in those conditions. Immediate searches upon arrival are also not practical, as the priority is typically to establish a water supply and commence fire suppression to reduce the threat before searching for victims.