Ideally, when, relative to the overhaul process, should fire investigators begin their work at a fire scene?

Fire investigators should ideally begin their work before the overhaul process starts to ensure that evidence is preserved and the scene is as intact as possible. Conducting investigations before any extensive fire suppression efforts or overhaul allows for the collection of crucial data regarding the origin and cause of the fire. This includes observing the scene for patterns of fire spread, identifying potential points of ignition, and noting any physical evidence that could be altered or destroyed during overhaul activities.

Engaging in the investigative process prior to overhaul helps to reduce the risk of contamination or alteration of potential evidence. Overhaul activities often involve moving debris and extinguishing hidden fires, which can disturb the critical indicators that investigators rely on to determine how the fire developed. By accessing the scene early, investigators can document conditions and gather witness statements before the scene changes due to firefighting operations. This practice leads to a more accurate and thorough investigation, which is vital for legal, safety, and insurance purposes.