Wisconsin Statutes Civil Procedure (Ch. 799 to 847) § 807.15. Penalty for certain actions by prisoners

(a) The action or special proceeding was filed for a malicious purpose.

(b) The action or special proceeding was filed solely to harass the party against which it was filed.

(c) The prisoner testifies falsely or otherwise knowingly offers false evidence or provides false information to the court.

(3)(a) Subject to pars. (b) and (c), if a court orders the department of corrections to extend a prisoner's mandatory release date or eligibility for release to extended supervision or orders the sheriff to deprive the prisoner of good time under sub. (2), the order shall specify the number of days by which the mandatory release date or eligibility for release to extended supervision is to be extended or the good time deprived.

(b) An order under sub. (2) to extend a prisoner's mandatory release date or deprive a prisoner of good time may not require the prisoner to serve more days than provided for under the prisoner's sentence.

(c) An order under sub. (2) to extend the eligibility for release to extended supervision of a prisoner subject to s. 302.113 may not require the prisoner to serve more days in prison than the total length of the prisoner's bifurcated sentence.