What is meant by 'secondary search' in firefighting?

The term 'secondary search' in firefighting refers specifically to a thorough and systematic search of a structure after the fire has been controlled. This phase of searching is conducted to ensure that no victims or potential hazards remain inside the building. The secondary search is performed with the understanding that initial searches may have been conducted under hazardous conditions or with limited visibility, which may not have allowed for a comprehensive evaluation of the structure.

During a secondary search, firefighters are able to utilize improved conditions, such as diminished smoke and heat levels, to make a more thorough examination of all areas of the building. This search is vital for the safety of occupants, as well as firefighters, ensuring that all potential threats are addressed.

While the other options describe important actions related to fire response, they do not accurately represent the specific process that the secondary search entails. The initial assessment of a fire scene pertains to evaluating the immediate situation before actively engaging in firefighting or rescues. Searching surrounding areas is focused on fire prevention and control, while reviewing fire reports and data is an analytical task that typically comes after the active firefighting efforts have concluded.