Wisconsin Statutes Civil Procedure (Ch. 799 to 847) § 809.71. Rule (Supervisory writ)

(1) A person may request the supreme court to exercise its supervisory jurisdiction over a court and the judge presiding therein or other person or body by filing a petition in accordance with s. 809.51.The petition shall be served on each party and proposed respondent, and if applicable, upon the originating court or tribunal, by traditional methods as provided in s. 809.80(2). A person seeking a supervisory writ from the supreme court shall first file a petition for a supervisory writ in the court of appeals under s. 809.51 unless it is impractical to seek the writ in the court of appeals. A petition in the supreme court shall show why it was impractical to seek the writ in the court of appeals or, if a petition had been filed in the court of appeals, the disposition made and reasons given by the court of appeals.

(2) The clerk of court shall docket the petition upon receipt of the items referred to in sub. (1). The clerk shall assign a case number, create a notice that the petition has been docketed, transmit the notice of docketing to the clerk of circuit court if applicable, and send the notice to the parties by traditional methods.