State v. Jamie Lane Stephenson, 935 N.W.2d 842

Jamie Stephenson has a lengthy history of sexual offenses (multiple juvenile and adult convictions) and was civilly committed under Wis. Stat. ch. 980 after a 2012 bench trial.
He filed annual discharge petitions; the 2017 petition resulted in an October 2017 discharge hearing and this appeal from denial and denial of postcommitment relief.
State expert Dr. Donn Kolbeck diagnosed qualifying disorders (other specified personality disorder with antisocial and borderline features; alcohol abuse disorder) and presented actuarial and clinical risk data (Static-99R = 7; VRS-SO change; PCL-R = 29; nonsuppression PPG; institutional rule violations); he calculated a lifetime risk ~41% and opined Stephenson did not meet “more likely than not.”
Defense witnesses (Drs. Matusen and Endres) testified to treatment progress and lower recidivism estimates (Endres: ~10% at 5 years, 17% at 10 years).
The circuit court denied discharge (but granted supervised release), finding the State had shown by clear and convincing evidence Stephenson remained a sexually violent person; the court also denied his postcommitment relief motion.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether expert testimony is required to prove future dangerousness in a ch. 980 discharge hearing	Stephenson: yes — because dangerousness must be shown to be caused by a qualifying mental disorder and experts are required to prove mental-disorder nexus, so experts must also opine that reoffense is "more likely than not."	State: no — once an expert establishes a qualifying disorder (which by statute predisposes to sexual violence), the factfinder may assess likelihood using expert diagnosis plus lay-applicable facts (criminal history, treatment, actuarials, behavior).	Court: No. Expert testimony that a disorder exists suffices; an expert opinion that it is "more likely than not" is helpful but not required.
Whether the evidence was sufficient (clear and convincing) to show Stephenson's disorders make reoffense more likely than not	Stephenson: insufficient — State failed to prove risk meets the statutory "more likely than not" standard.	State: sufficient — substantial evidence (extensive sexual-offense history, supervision failures, PPG results, PCL-R, institutional misconduct, alcohol-related admissions, actuarial scores) supports finding of likely reoffense.	Court: Sufficient. Viewing evidence in favor of the commitment, a reasonable factfinder could conclude by clear and convincing evidence Stephenson remained likely to reoffend.

State v. Kienitz, 227 Wis. 2d 423, 597 N.W.2d 712 (1999) (discusses factors a factfinder may consider in assessing risk and that prior sexual offenses are probative of dangerousness)
State v. Sorenson, 254 Wis. 2d 54, 646 N.W.2d 354 (2002) (explains commitment proof requires expert evidence showing a qualifying mental disorder)
White v. Leeder, 149 Wis. 2d 948, 440 N.W.2d 557 (1989) (expert testimony demanded only when issue is beyond ordinary lay comprehension)
Wal-Mart Stores, Inc. v. LIRC, 240 Wis. 2d 209, 621 N.W.2d 633 (Ct. App. 2000) (where causation of conduct by OCD was not within ordinary knowledge, expert proof was required)
Jones v. United States, 463 U.S. 354 (1983) (prior convictions can be concrete evidence of dangerousness)
State v. Mark, 308 Wis. 2d 191, 747 N.W.2d 727 (Ct. App. 2008) (noting absence of authority requiring expert opinion that defendant is "more likely than not" to reoffend)
State v. Post, 197 Wis. 2d 279, 541 N.W.2d 115 (1995) (contemplating mental-disorder proof via expert examination)