Wis. Stat. § 885.23
Whenever it is relevant in a civil action to determine the parentage or identity of any child, person or corpse, the court, by order, shall direct any party to the action and any person involved in the controversy to submit to one or more genetic tests as provided in s. 767.84 . The results of the tests shall be receivable as evidence in any case where exclusion from parentage is established or where a probability of parentage is shown to exist. Whenever the court orders the genetic tests and one of the parties refuses to submit to the tests that fact shall be disclosed upon trial.
Wis. Stat. § 885.23
Section 767.80(1) does not permit a man alleging he is the father to bring a paternity action for the sole purpose of establishing paternity of a stillborn so that he may bring a wrongful death action. The proper vehicle for determining parentage is a motion by the father under this section for a determination of parentage within the pending wrongful death action. Shannon E.T. v. Alicia M.V.M., 2007 WI 29, 299 Wis. 2d 601, 728 N.W.2d 636, 05-0077.