The Mayor, Commissioners or the Chief Fire Marshal may, and the Chief of Police and all police officers shall, during the progress of any fire, arrest any person found stealing or trespassing upon any property, willfully injuring or breaking any engine or other fire apparatus, or any person found stealing or trespassing upon any property, or willfully injuring or breaking any engine or other fire apparatus, or any person resisting or obstructing any member of the Fire Department in the discharge of his duty, or otherwise conducting himself in a riotous or disorderly manner.
('71 Code, § 6-1-5)