If all or part of any building falls or collapses, where persons are known or believed to be buried under the ruins, the Fire Department shall cause an examination of the premises to be made for the recovery of the bodies of the killed and injured. Whenever, in making such examination, it shall be necessary to remove any debris from the premises, the Commissioner of Public Works, when called upon by the Fire Department, shall cooperate with the Fire Department and shall provide suitable and convenient places for the deposit of the debris.
If a building or part thereof has fallen and life is endangered by the occupancy thereof, the Fire Department shall have power in such cases to order and require the occupants to vacate the building. The Fire Department may, when necessary for the public safety, temporarily close sidewalks, streets, buildings, structures and places adjacent to such a building or part thereof and prohibit their use or occupancy.