A fire marshal, in the United States and Canada, is often a member of a state, provincial or territorial government, but may be part of a building department or a separate department altogether. Fire marshals' duties vary but usually include fire code enforcement or investigating fires for origin and cause. Fire marshals may be sworn law-enforcement officers and are often experienced firefighters. In larger cities with substantially developed fire departments the local fire departments are sometimes delegated some of the duties of the fire marshal. A fire marshal's duties vary by location. Fire marshals may carry a weapon, wear a badge, wear a uniform or plain clothes, can drive marked or unmarked cars, and make arrests pertaining to arson and related offenses, or, in other localities, may have duties entirely separate from law enforcement, including building- and fire-code-related inspections. In many areas, the fire marshal is responsible for enforcing laws concerning flammable materials. From Wikipedia
