Wis. Stat. § 823.09: Bawdyhouses declared nuisances.

Whoever shall erect, establish, continue, maintain, use, occupy or lease any building or part of building, erection or place to be used for the purpose of lewdness, assignation or prostitution, or permit the same to be used, in the state of Wisconsin, shall be guilty of a nuisance and the building, erection, or place, in or upon which such lewdness, assignation or prostitution is conducted, permitted, carried on, continued or exists, and the furniture, fixtures, musical instruments and contents used therewith for the same purpose are declared a nuisance, and shall be enjoined and abated.