Applications for work permits for cardroom employees shall be submitted under oath and contain the past criminal record, if any, of the applicant and such information as may be deemed by the chief of police necessary to determine whether the applicant is a proper person to be issued a cardroom work permit. The application shall also be accompanied by fingerprints, a photograph and a physical description of the applicant. A work permit shall be issued only to citizens of the United States of America. (Ord. No. 933, § 4.)