Can the cause of a fire remain forever unknown?

• A. No, it is always known.
• B. Only if the building is destroyed.
• C. It is never unknown.
• D. Yes, it can remain unknown.

Answer: (D)

The idea being tested is that a fire’s cause isn’t always identifiable, even after thorough investigation. Investigators work by analyzing burn patterns, damage, debris, and any records or witnesses to deduce where a fire started and what ignited it. But sometimes the scene is too damaged, evidence is destroyed or overwritten by the fire itself, or there are multiple plausible ignition sources with no definitive proof to pick one over the others. In those situations, investigators may not be able to determine a definite cause, and the origin and cause can remain unknown or undetermined. This is a recognized possibility and explains why some fires end with an inconclusive result, rather than a single, confirmable cause.