Wis. Stat. § 980.05
The trier of fact is free to weigh expert testimony that conflicts and decide which is more reliable, to accept or reject an expert's testimony, including accepting only parts of the testimony, and to consider all non-expert testimony. State v. Kienitz, 227 Wis. 2d 423, 597 N.W.2d 712 (1999), 97-1460. This section does not confine expert testimony to any specific standard nor mandate the type or character of relevant evidence that the state may choose to meet its burden of proof. State v. Zanelli, 223 Wis. 2d 545, 589 N.W.2d 687 (Ct. App. 1998), 98-0733. The standard of review for commitments under ch. 980 is the standard applicable to the review of criminal cases whether the evidence could have led the trier of fact to find beyond a reasonable doubt that the person subject to commitment is a sexually violent person. State v. Curiel, 227 Wis. 2d 389, 597 N.W.2d 697 (1999), 97-1337. The right to a jury trial under ch. 980 is governed by sub. (2) rather than case law governing the right to a jury trial in criminal proceedings. State v. Bernstein, 231 Wis. 2d 392, 605 N.W.2d 555 (1999), 98-2259. The sub. (2) requirement that the 2 persons who did not request the withdrawal of a request for a jury trial consent to the withdrawal does not require a personal statement from the person subject to the commitment proceeding. Consent may be granted by defense counsel. State v. Bernstein, 231 Wis. 2d 392, 605 N.W.2d 555 (1999), 98-2259. To the extent that s. 938.35(1) prohibits the admission of delinquency adjudications in ch. 980 proceedings, it is repealed by implication. State v. Matthew A.B. 231 Wis. 2d 688, 605 N.W.2d 598 (Ct. App. 1999), 98-0229. Sub. (2) does not require that a respondent be advised by the court that a jury verdict must be unanimous in order for the withdrawal of a request for a jury trial to be valid. State v. Denman, 2001 WI App 96, 243 Wis. 2d 14, 626 N.W.2d 296, 99-1829. Chapter 980 respondents are afforded the same constitutional protections as criminal defendants. Although the doctrine of issue preclusion may generally apply in ch. 980 cases, application of the doctrine may be fundamentally unfair. When new evidence of victim recantation was offered at the ch. 980 trial, the defendant had a due process interest in gaining admission of the evidence to ensure accurate expert opinions on his mental disorder and future dangerousness when the experts' opinions presented were based heavily on the fact that the defendants committed the underlying crime. State v. Sorenson, 2002 WI 78, 254 Wis. 2d 54, 646 N.W.2d 354, 98-3107. A sexually violent person committed under ch. 980 preserves the right to appeal, as a matter of right, by filing postverdict motions within 20 days of the commitment order. State v. Treadway, 2002 WI App 195, 257 Wis. 2d. 467, 651 N.W.2d 334, 00-2957. A parole and probation agent who had been employed full-time in a specialized sex-offender unit for 3 years during which he had supervised hundreds of sex offenders was prepared by both training and experience to assess a sex offender, and was qualified to render an opinion on whether he would reoffend. That the agent did not provide the nexus to any mental disorder did not render his testimony inadmissible. State v. Treadway, 2002 WI App 195, 257 Wis. 2d. 467, 651 N.W.2d 334, 00-2957. Neither ch. 980 nor ch. 51 grants persons being committed under ch. 980 the right to request confidential proceedings. That ch. 51 hearings are closed while ch. 980 hearings are not does not violate equal protection. State v. Burgess, 2002 WI App 264, 258 Wis. 2d 548, 654 N.W.2d 81, 00-3074. Affirmed. 2003 WI 71, 262 WI 2d 354, 665 N.W.2d 124. See also Burgess v. Watters, 467 F.3d 676 (2007). Article I, section 7 does not prohibit the legislature from enacting statutes requiring that trials be held in certain counties. The legislature could properly provide in sub. (2) that ch. 980 proceedings be held in a county other than the one in which the predicate offense was committed. State v. Tainter, 2002 WI App 296, 259 Wis. 2d 387, 655 N.W.2d 538, 01-2644. During a commitment proceeding under ch. 980, s. 904.04(2), relating to other crimes evidence, does not apply to evidence offered to prove that the respondent has a mental disorder that makes it substantially probable that the respondent will commit acts of sexual violence in the future, as required under [former] s. 980.01(7). State v. Franklin, 2004 WI 38, 270 Wis. 2d 271, 677 N.W.2d 276, 00-2426. No error was found in giving a jury a general verdict form in a ch. 980 hearing when the defendant failed to establish that ch. 980 respondents are routinely deprived of special verdicts and that general verdicts are more likely to result in commitments. State v. Madison, 2004 WI App 46, 271 Wis. 2d 218, 678 N.W.2d 607, 02-3099. When a defendant seeks to exclude prior statements based upon his or her 5th amendment privilege, he or she must first establish that the statements at issue are 1) testimonial; 2) compelled; and 3) incriminating. The mere fact that a statement is compelled does not require it to be excluded from a ch. 980 commitment trial. While an individual has a pre-petition or pre-arrest right against self-incrimination, that right is ordinarily not self-executing and must be invoked. State v. Mark, 2006 WI 78, 292 Wis. 2d 1, 718 N.W.2d 90, 03-2068. Under Mark, 2006 WI 78, the respondent has the same 5th amendment privilege against self-incrimination as does a defendant at a criminal trial. Kastigar, 406 U.S. 441, articulates the scope of the privilege in terms of the protection at trial when a criminal defendant has given an immunized statement, providing that immunity from the use of compelled testimony, as well as evidence derived directly and indirectly therefrom, affords the protection of the 5th amendment privilege. It prohibits the prosecutorial authorities from using the compelled testimony in any respect, and it therefore insures that the testimony cannot lead to the infliction of criminal penalties on the witness. State v. Harrell, 2008 WI App 37, 308 Wis. 2d 166, 747 N.W.2d 770, 05-2393. Testimony referring to incidents revealed by the defendants compelled testimony and two experts' opinions that the defendant was much more likely than not to reoffend should have been excluded because that evidence was derived from compelled statements that were testimonial and incriminating. State v. Mark, 2008 WI App 44, 308 Wis. 2d 191, 747 N.W.2d 727, 07-0522. A person against whom a ch. 980 petition has been filed is not entitled to a competency evaluation under s. 971.14. Although the result of a successful ch. 980 petition is confinement, the confinement is for treatment not punishment and there is no criminal-law-based due-process right to a competency hearing in a ch. 980 proceeding. State v. Luttrell, 2008 WI App 93, 312 Wis. 2d 695, 754 N.W.2d 249, 07-1840. Section 904.04(2) does not apply in ch. 980 commitment proceedings. The Franklin court discerned an unambiguous legislative intent to restrict the application of s. 904.04(2) to analyzing evidence used to prove past acts. Future conduct is the relevant question in ch. 980 proceedings. The nature of ch. 980 hearings demands the jury consider evidence that would normally be barred in a traditional criminal trial. Although Franklin did not discuss the due process implications of its decision, the inapplicability of s. 904.04(2) is consistent with the demands of due process under both the United States and Wisconsin constitutions. State v. Kaminski, 2009 WI App 175, 322 Wis. 2d 653, 777 N.W.2d 654, 08-2439. At the defendant's trial for commitment as a sexually violent person under this chapter, the circuit court did not erroneously exercise its discretion under s. 907.02(1) when the court admitted expert testimony based on the results of the Minnesota Sex Offender Screening Tool-Revised (MnSOST-R) and the Rapid Risk Assessment for Sexual Offense Recidivism (RRASOR), which are actuarial instruments designed to measure an offender's risk of reoffending. The court evaluated the relevant facts under the proper standard and articulated a reasonable basis for the court's decision. State v. Jones, 2018 WI 44, 381 Wis. 2d 284, 911 N.W.2d 97, 15-2665.