53 Pa. Stat. § 14528
The Fire Marshal and the chief assistant fire marshal, and assistant fire marshals, shall each have the power to summon and compel the attendance of witnesses before them, or either of them, to testify in relation to any matter which is by the provision of this act a subject on inquiry and investigation, and may require the production of any book, paper, or document deemed pertinent thereto by them, or either of them. Said Fire Marshal, and chief assistant fire marshal and assistant fire marshals, are each hereby authorized and empowered to administer oaths and affirmations to any persons appearing as witnesses before them. Any witness who refuses to be sworn, or who refuses to testify, or who disobeys any lawful order of said Fire Marshal, chief assistant or assistant fire marshals, or who fails or refuses to produce any book, paper, or document touching any matter under examination, or who is guilty of any contemptuous conduct after being summoned by them, or either of them, to appear before them or either of them, to give testimony in relation to any matter or subject under investigation as aforesaid, shall be deemed guilty of a misdemeanor, and, on conviction before any magistrate, be fined twenty-five dollars, or, in default of such payment, imprisoned in the county prison not more than thirty days. Said Fire Marshal and his subordinates, or either of them, shall have the authority at all times of day and night, in the performance of the duties imposed by the provisions in this act, to enter upon and examine any building, or premises adjoining or near the same.
53 P.S. § 14528