An applicant for a cardroom license shall submit his application to the chief of police, which application shall be under oath, and shall include, among other things, the true names and addresses of all persons financially interested in the business. The term “persons financially interested” shall include all persons who share in the profits of the business on the basis of gross or net revenue. The past criminal record, if any, of the applicant and of all persons financially interested in the business shall be shown on such application. The application shall also be accompanied by fingerprints, a photograph and a physical description of the applicant and of persons financially interested in the business. A license may be issued only to citizens of the United States of America. (Ord. No. 933, § 3.)