Wis. Stat. § 19.02: Actions by individuals.

Any person injured by the act, neglect or default of any officer, except the state officers, the officer’s deputies or other persons which constitutes a breach of the condition of the official bond of the officer, may maintain an action in that person’s name against the officer and the officer’s sureties upon such bond for the recovery of any damages the person may have sustained by reason thereof, without leave and without any assignment of any such bond.