Wisconsin Statutes Criminal Procedure (Ch. 967 to 980) § 972.08. Incriminating testimony compelled; immunity

(1)(a) Whenever any person refuses to testify or to produce books, papers or documents when required to do so before any grand jury, in a proceeding under s. 968.26 or at a preliminary examination, criminal hearing or trial for the reason that the testimony or evidence required of him or her may tend to incriminate him or her or subject him or her to a forfeiture or penalty, the person may nevertheless be compelled to testify or produce the evidence by order of the court on motion of the district attorney. No person who testifies or produces evidence in obedience to the command of the court in that case may be liable to any forfeiture or penalty for or on account of testifying or producing evidence, but no person may be exempted from prosecution and punishment for perjury or false swearing committed in so testifying.

(b) The immunity provided under par. (a) is subject to the restrictions under s. 972.085.