Texas Government Code - GOV'T § 30.00023. Court Rules

(a) Except as modified by this subchapter, the Code of Criminal Procedure and the Texas Rules of Appellate Procedure govern the trial of cases before the municipal courts of record.  The courts may make and enforce all rules of practice and procedure necessary to expedite the trial of cases before the courts that are not inconsistent with law.

(b) The appellate courts may make and enforce all rules of practice and procedure that are not inconsistent with law and that are necessary to expedite the dispatch of appeals from the municipal courts of record.