Wis. Stat. § 961.495
If any person violates s. 961.41(3g) by possessing or attempting to possess a controlled substance included in schedule I or II, a controlled substance analog of a controlled substance included in schedule I or II or ketamine or flunitrazepam while in or on the premises of a scattered-site public housing project, while in or on or otherwise within 1,000 feet of a state, county, city, village, or town park, a jail or correctional facility, a multiunit public housing project, a swimming pool open to members of the public, a youth center or a community center, while in or on or otherwise within 1,000 feet of any private or public school premises or of any premises of a tribal school, as defined in s. 115.001(15m), or while in or on or otherwise within 1,000 feet of a school bus, as defined in s. 340.01(56), the court shall, in addition to any other penalties that may apply to the crime, impose 100 hours of community service work for a public agency or a nonprofit charitable organization. The court shall ensure that the defendant is provided a written statement of the terms of the community service order and that the community service order is monitored. Any organization or agency acting in good faith to which a defendant is assigned pursuant to an order under this section has immunity from any civil liability in excess of $25,000 for acts or omissions by or impacting on the defendant.
Wis. Stat. § 961.495