What do arson investigators primarily search for at a fire scene?

Arson investigators focus primarily on signs of accelerants and patterns of fire at a fire scene because these elements provide critical information about how the fire started and whether it was intentionally set. By examining patterns of fire spread, investigators can identify the point of origin and determine if accelerants—substances that promote the rapid spread of fire, such as gasoline or lighter fluid—were used. This analysis is essential in establishing whether foul play was involved.

Identifying signs of accelerants helps in differentiating between accidental fires and those that are deliberately ignited. Patterns of burn can indicate the use of accelerants, as they create distinctive burn marks on surfaces. Understanding these patterns assists investigators in constructing a timeline of the fire's development and can ultimately lead to determining how the fire was initiated and who might be responsible.

The other options, while relevant to various aspects of a fire investigation or emergency response, do not focus as directly on the primary goals of an arson investigation. Searching for survivors and witnesses is crucial in the immediate aftermath of a fire for safety and to gather eyewitness accounts; however, it does not address the core evidence needed to investigate the cause of the fire. Photographs of damage and legal documents have their importance in documenting the fire's impact and legal