It is lawful for any fireman acting under the direction of the chief or another officer in command to enter upon the premises adjacent to or in the vicinity of any building or other property that is on fire, for the purpose of extinguishing such fire, and no person shall hinder, resist or obstruct any fireman in the discharge of his duty as provided in this chapter. (Ord. 326 (part), 1984: prior code § 4-2-5)