(a) Any person charged with the violation of a municipal ordinance shall be entitled to a trial by jury, as in prosecutions for misdemeanors before an associate circuit judge.

    (b) Whenever a defendant accused of a violation of a municipal ordinance has the right to a trial by jury and demands such trial by jury, the municipal judge shall certify the case to the presiding judge of the circuit court serving the city for assignment in the manner provided by state law. Proceedings in the case shall be had as if the case was originally commenced under the practice and procedure applicable before circuit judges with there being no right of trial de novo; but the sufficiency of plaintiff's petition shall be adjudged according to the procedures under chapter 517, RSMo.

(Code 1964, § 7.080)