Who is primarily responsible for determining when to stop suppression or overhaul to preserve evidence?

• A. Insurance representative
• B. Fire investigator
• C. Incident commander
• D. Fire officer

Answer: (D)

Preserving evidence at the fire scene requires someone on scene with authority to balance firefighting needs with investigation goals. The fire officer on scene is the one who directly supervises suppression and overhaul and is responsible for deciding when to stop actions that could disturb or destroy potential evidence. They coordinate with investigators, maintain scene security, and ensure that continued suppression does not unnecessarily contaminate or erase evidence while still protecting crews and the public. Insurance representatives do not have the authority to halt operations, and while a fire investigator collects evidence and determines origin and cause, they rely on the on-scene supervisor to control operations. The incident commander oversees overall incident management, but the specific call to halt suppression or overhaul to preserve evidence rests with the fire officer on site.