Wisconsin Constitution Art. VII § 5. Court of appeals

Section 5. [(1)] The legislature shall by law combine the judicial circuits of the state into one or more districts for the court of appeals and shall designate in each district the locations where the appeals court shall sit for the convenience of litigants.

(2) For each district of the appeals court there shall be chosen by the qualified electors of the district one or more appeals judges as prescribed by law, who shall sit as prescribed by law. Appeals judges shall be elected for 6-year terms and shall reside in the district from which elected. No alteration of district or circuit boundaries shall have the effect of removing an appeals judge from office during the judge's term. In case of an increase in the number of appeals judges, the first judge or judges shall be elected for full terms unless the legislature prescribes a shorter initial term for staggering of terms.

(3) The appeals court shall have such appellate jurisdiction in the district, including jurisdiction to review administrative proceedings, as the legislature may provide by law, but shall have no original jurisdiction other than by prerogative writ. The appeals court may issue all writs necessary in aid of its jurisdiction and shall have supervisory authority over all actions and proceedings in the courts in the district.