Wis. Stat. § 941.34

Whoever uses, or possesses or controls with intent to so use, any fluoroscopic or X-ray machine for the purpose of shoe-fitting or attempting to fit shoes, or who knowingly permits such machine, whether in use or not, to remain on his or her premises, is subject to a Class B forfeiture. Each day of such use, possession or control shall constitute a separate violation of this section.