While the Bronx may no longer be burning arson is still the most underreported of crimes and the most difficult to track. The FBI reports that only one in six arsons involves an arrest. One of the main problems in establishing arson is that the evidence burns in the fire. National statistics tend to look at trends as arson falls under one of four categories: unknown; incendiary; suspicious and; deliberate. In the case of the Bug, accidental would not equate to arson.