A taxicab driver's license may be denied to any applicant who, within ten years prior to the application has been convicted of a criminal offense under state or federal laws, whether charged under such statute or ordinance. The license shall be denied in the event of a conviction of the applicant within said ten year period of any offense involving gambling, illegal traffic in intoxicating liquor or in narcotics, or moral turpitude. By and with the approval of the Police Department of the City, a taxicab driver's license may be denied to any person who has knowingly transported persons engaged in either liquor or narcotics traffic or prostitution, whether such applicants have or have not been convicted of such transportation.
(1969 Code 113.12)