Tennessee Code Title 37. Juveniles § 37-1-303

(a) To begin proceedings under this part, the petitioner shall file a written petition with the clerk of the chancery or circuit court in the county in which the commitment occurred, naming the state of Tennessee as the respondent. No filing fee shall be charged.

(b) The petition shall be heard by the judge of the chancery or circuit court in which the petition was filed. If the petition is filed in the circuit court where a de novo hearing regarding the petitioner's juvenile court commitment was heard, the case shall be heard by the chancellor of the county or other trial judge by interchange as authorized by title 17, chapter 2. Where an issue is raised as to the effective assistance of counsel representing the petitioner at the de novo hearing in the circuit court, the circuit court judge who presided over that hearing, where available, shall hear and determine the petition.