Wis. Stat. § 111.12: Duties of the attorney general and district attorneys.

Upon the request of the commission, the attorney general or the district attorney of the county in which a proceeding is brought before the circuit court for the purpose of enforcing or reviewing an order of the commission shall appear and act as counsel for the commission in such proceeding and in any proceeding to review the action of the circuit court affirming, modifying or reversing such order.