Wis. Stat. § 898.24: Suit on bond.

In every suit brought by a sheriff on the bond if it appears to the court that judgment has been rendered against the sheriff for the escape of the prisoner and that due notice of the pendency of the action against the sheriff was given to the prisoner and his or her sureties, to enable them to defend the action, the court shall render judgment in the suit upon the bond after the summons is served, upon the complaint being filed and 20 days’ notice of the application for the judgment has been given to the defendants in the action.