The local liquor control commissioner shall have the right to examine, or cause to be examined, under oath, any application for a license or for a renewal thereof, or any licensee upon whom notice of revocation or suspension has been served as provided for in statute, and to examine or cause to be examined the books and records of any such applicant or licensee, to hear testimony and take proofs for his information in the performance of his duties, and for such purpose to issue subpoenas which shall be effective in any part of the state. For the purpose of obtaining any of the information desired by the local liquor control commissioner under this section, he may authorize his agent to act on his behalf. (Ord. 300, 11-21-1989)