Wis. Stat. § 85.51: State traffic patrol services.

(1) Special events fee. The department may charge an event sponsor, as defined by rule, a fee, in an amount calculated under a uniform method established by rule, for security and traffic enforcement services provided by the state traffic patrol at any public event for which an admission fee is charged for spectators. The department may not impose a fee for such services except as provided in this section.

(2) Security and traffic enforcement services fee. The department may charge any person a fee, in an amount calculated under a uniform method established by rule, for security and traffic enforcement services provided by the state traffic patrol during that person’s installation, inspection, removal, relocation, or repair of a utility facility, as defined in s. 30.40 (19), located on a highway, as defined in s. 340.01 (22), if that person requests such services in writing.

(3) Use of fees. All moneys received under this section shall be deposited in the general fund and credited to the appropriation account under s. 20.395 (5) (dg).