What is the duty of a fire department to “overhaul” the fire area?

The concepts of “overhaul” and “fire watch” are related and were discussed in the 1994 case of Gallagher v. Burlington (City) supra. That was a case in which a fire department had responded to a house fire in progress and had successfully knocked down the fire. Several hours later a second fire which caused extensive damage to the building was reported. Crane J. states the following at paragraph 12 of his reasons: Overhaul after the first fire started immediately after knockdown at 1259 hours. From the evidence of all witnesses who commented on overhaul, I find that the definition set out in the Ontario Firefighters’ Standards publication of April, 1990, had been accepted by Fire Departments in Ontario for a considerable period of time prior thereto. I find, therefore, the duty of the defendant was to: “Overhaul the fire area by searching for and extinguishing hidden fires, restoring premises to a secure state and recognizing and preserving evidence of arson; using wet vacuums, pipe poles, pry bars, hose lines, and hand tools, so that the fire is completely extinguished and no rekindling can occur and the building is secure.”