During fire suppression, which of the following should trigger suspicion of an intentionally set fire?

• A. Unusual Odors
• B. All of the Above
• C. Flashover
• D. Delayed Calling

Answer: (B)

During fire suppression, be alert for signs that don’t fit a natural or accidental ignition. Unusual odors can indicate the presence of accelerants, especially if the smell is strong, chemical, or out of place for the location. A fire advancing to flashover rapidly can also raise suspicion, because accelerants can drive faster heat release and flame spread than expected for the scene. Delayed calling is another red flag; if someone wants to slow responders or conceal involvement, the fire may be reported later than normal. When these indicators appear together, they collectively suggest a higher likelihood of intentional ignition, which is why all of the above is the best choice. If you notice these signs, document what you observe and involve fire investigators to preserve and examine potential evidence.