Applicants for licenses in occupations by their nature affecting the public health, safety or the morals of the community as herein named shall be referred by the city recorder to the chief of police for investigation, who shall, within a reasonable time, file a written report of such application with the city recorder, giving a report of his investigations with his recommendation for the issuance or nonissuance of a license, and if such report be favorable, a license shall be issued in the usual course; provided, that if the report is unfavorable, then in that case no license shall be issued by the city recorder, but the applicant shall have the right of appeal to the city council, which, in its discretion after a hearing thereon, may grant or reject such application. The applicant shall not engage in business for which the application is made pending the investigation by the chief of police, or pending a hearing thereon by the city council. For the purposes of this chapter, it is declared that carnival shows, circuses, menageries, theaters, picture shows, vaudeville side shows, tent shows, tent museums, fortune tellers, boxing contests, wrestling matches and all traveling performers and exhibits and concessions of every kind or nature, and solicitors and peddlers, affect the public health, safety and morals and are subjects for investigation as herein provided. (1949 Code § 12-0-6)