§ 110.11  INSPECTION OF LICENSED BUSINESS; RIGHT OF ENTRY; REFUSAL TO SUBMIT TO INSPECTION.
   (A)   Whenever inspections of the premises used for or in connection with the operation of a licensed business or occupation or permitted purpose or activity are provided for or required by ordinance, or are reasonably necessary to assure compliance with the provisions of any ordinance or regulation of the city, or to detect violations thereof, it shall be the duty of the licensee or the person in charge of the premises to admit thereto for the purpose of making the inspection any officer or employee of the city who is duly authorized to make the inspection at any reasonable time that the admission or entry is requested.
   (B)   In addition to any other penalty which may be provided, the Mayor may revoke the license or permit of any owner or operator of a licensed business or permitted activity in the city who refuses to permit any duly authorized officer or employee to make the inspection, or who interferes with the officer or employee while in the performance of his or her duties.  However, no license shall be subject to revocation for the cause unless the officer or employee has been refused permission to enter upon the premises in the name of the city after first having presented a warrant authorizing the entry.
(1992 Code, § 110.11)