The council shall have power to inquire into the conduct of any office, department, agency, or officer of the city, and can make investigation as to municipal affairs, and for that purpose may subpoena witnesses, administer oaths and compel the production of books, papers, and other evidence. Failure to obey such subpoena, or to produce books, papers or other evidence as ordered under the provisions of this section shall constitute a misdemeanor, and shall be punished by fine not to exceed two hundred dollars ($200.00).