The liquor control commissioner shall also have the following powers, functions and duties with respect to retail licenses for the sale of alcoholic liquors:
A. To grant or suspend for not more than thirty (30) days, or revoke for cause, all local licenses issued to persons for premises within the village.
B. To enter, or to authorize any law enforcing officer to enter, upon the premises licensed hereunder to determine whether any of the provisions of this chapter or of "an act relating to alcoholic liquors", as amended, or any rules or regulations of this code or of the Illinois liquor control commission have been or are being violated, and at such time to examine the premises of the licensee in connection therewith.
C. To receive complaint from any citizen within his jurisdiction that any of the provisions of "an act relating to alcoholic liquors", as amended, or any rules or regulations of this code or of the Illinois liquor commission have been or are being violated and to act upon such complaints in the manner hereinafter provided.
D. To receive local license fees and pay the same forthwith to the village treasurer.
E. The liquor control commissioner shall have the right to examine, or cause to be examined, under oath, any applicant for a local license or for a renewal thereof, or any licensee upon whom notice of revocation or suspension has been served in the manner hereinafter provided; and to examine, or cause to be examined the books and records of any such applicant or licensee; to hear testimony and take proof for his information in the performance of his duties, and for such purpose to issue subpoenas which shall be effective in any part of this state. For the purpose of obtaining any information desired by the local liquor control commissioner under this section, he may authorize his agent to act on his behalf. (1983 Code)