Wis. Stat. § 440.21: Enforcement of laws requiring credential.

(1) The department may conduct investigations, hold hearings and make findings as to whether a person has engaged in a practice or used a title without a credential required under chs. 440 to 480.

(2) If, after holding a public hearing, the department determines that a person has engaged in a practice or used a title without a credential required under chs. 440 to 480, the department may issue a special order enjoining the person from the continuation of the practice or use of the title.

(3) In lieu of holding a public hearing, if the department has reason to believe that a person has engaged in a practice or used a title without a credential required under chs. 440 to 480, the department may petition the circuit court for a temporary restraining order or an injunction as provided in ch. 813.

(4)

(a) Notwithstanding any other provision of chs. 440 to 480 relating to fines, forfeitures, or imprisonment, any person who violates a special order issued under sub. (2) may be required to forfeit not more than $10,000 for each offense. Each day of continued violation constitutes a separate offense. The attorney general or any district attorney may commence an action in the name of the state to recover a forfeiture under this paragraph.

(b) Notwithstanding any other provision of chs. 440 to 480 relating to fines, forfeitures, or imprisonment, any person who violates a temporary restraining order or an injunction issued by a court upon a petition under sub. (3) may be fined not less than $25 nor more than $5,000 or imprisoned for not more than one year in the county jail or both.