Any taxicab driver convicted by a court of competent jurisdiction of violating any ordinance of the city or law relating to motor vehicles, their operation or equipment or convicted of a misdemeanor committed while he is in charge of a taxicab, shall be subject, in addition to other penalties, to having his taxicab license suspended for a period of 30 days. The trial judge may order such suspension and upon so doing shall take from the licensee his badge and forward it to the City Manager who shall note upon the license and upon his record the fact of such suspension. At the end of 30 days, the license and badge shall be restored to the licensee, upon his application, if filed within three days from the expiration of the 30 day period. Upon a subsequent conviction by a court of competent jurisdiction of a misdemeanor while in charge of a taxicab or in case of the commission of any felony by any taxicab driver, the trial judge, in addition to other penalties prescribed for such violation, may permanently revoke such taxicab driver's license and no license shall again be issued to such taxicab driver. The trial judge in such case shall take from the taxicab driver his badge and license and the same shall be forwarded forthwith to the City Manager for cancellation.
('71 Code, § 743.15)