Forensic psychologist Dr. Steven Gaskell has completed over 3000 Forensic Psychological Evaluations including more than 1850 psychosexual evaluations, including Sexually Violent Person or Sexually Violent Predator (SVP) evaluations. Dr. Gaskell accepts referrals for sex offender evaluations of pre-probable cause and post-probable cause SVP evaluations nationwide. Second opinion sex offender evaluations and trial consultation services are also available. This post explores the Sexually Violent Person laws by state. There are currently 19 states with a Sexually Violent Person or Sexually Violent Predator law.
Sexually Violent Persons Laws by State
Psycholegal Assessments, Inc. will accept Sexually Violent Person, Sexually Violent Predator, Sexually Dangerous Person, Dangerous Sex Offender referrals on a case by case basis.
Illinois
In Illinois a Sexually Violent Person is defined in 725 ILCS 207/5 (f) as the following: “Sexually violent person” means a person who has been convicted of a sexually violent offense, has been adjudicated delinquent for a sexual violent offense, or has been found not guilty of a sexual violent offense by reason of insanity and who is dangerous because he or she suffers from a mental disorder that makes it substantially probable that the person will engage in acts of sexual violence. This act became effective on January 1, 1998.
Kansas
In Kansas, Statute Chapter 59, Article 29a (59-29a02 Commitment of Sexually Violent Predators) defines a Sexually Violent Predator as:
(a) “Sexually violent predator” means any person who has been convicted of or charged with a sexually violent offense and who suffers from a mental abnormality or personality disorder which makes the person likely to engage in repeat acts of sexual violence.
(b) “Mental abnormality” means a congenital or acquired condition affecting the emotional or volitional capacity which predisposes the person to commit sexually violent offenses in a degree constituting such person a menace to the health and safety of others.
(c) “Likely to engage in repeat acts of sexual violence” means the person’s propensity to commit acts of sexual violence is of such a degree as to pose a menace to the health and safety of others.
Arizona
ARIZ. REV. STAT. ANN. § 36-3701 (2012).
“Sexually Violent Person” means a person to whom both of the following apply”
(a) Has ever been convicted of or found guilty but insane of a sexually violent offense or was charged with a sexually violent offense and was determined incompetent to stand trial.
(b) Has a mental disorder that makes the person likely to engage in acts of sexual violence
“Mental disorder” means a paraphilia, personality disorder or conduct disorder or any combination of paraphilia, personality disorder and conduct disorder that predisposes a person to commit sexual acts to such a degree as to render the person a danger to the health and safety of others.
The court or jury shall determine beyond a reasonable doubt if the person named in the petition is a sexually violent person. If the state alleges that the sexually violent offense on which the petition for commitment is based was sexually motivated, the state shall prove beyond a reasonable doubt that the alleged sexually violent act was sexually motivated.
California
California Welfare and Institutions Code = SECTION 6600-6609.3
As used in this article, the following terms have the following meanings:
(a) (1) “Sexually violent predator” means a person who has been convicted of a sexually violent offense against one or more victims and who has a diagnosed mental disorder that makes the person a danger to the health and safety of others in that it is likely that he or she will engage in sexually violent criminal behavior.
“Diagnosed mental disorder” includes a congenital or acquired condition affecting the emotional or volitional capacity that predisposes the person to the commission of criminal sexual acts in a degree constituting the person a menace to the health and safety of others.
Convictions of one or more of the crimes enumerated in this section shall constitute evidence that may support a court or jury determination that a person is a sexually violent predator, but shall not be the sole basis for the determination.
Jurors shall be admonished that they may not find a person a sexually violent predator based on prior offenses absent relevant evidence of a currently diagnosed mental disorder that makes the person a danger to the health and safety of others in that it is likely that he or she will engage in sexually violent criminal behavior.
To be found a Sexually Violent Predator the level of proof is beyond a reasonable doubt.
Florida
2001 Florida Statutes Title XXIX, Chapter 294 – 394.910 Legislative findings and intent.–The Legislature finds that a small but extremely dangerous number of sexually violent predators exist who do not have a mental disease or defect that renders them appropriate for involuntary treatment under the Baker Act, part I of this chapter, which is intended to provide short-term treatment to individuals with serious mental disorders and then return them to the community. In contrast to persons appropriate for civil commitment under the Baker Act, sexually violent predators generally have antisocial personality features which are unamenable to existing mental illness treatment modalities, and those features render them likely to engage in criminal, sexually violent behavior. The Legislature further finds that the likelihood of sexually violent predators engaging in repeat acts of predatory sexual violence is high. The existing involuntary commitment procedures under the Baker Act for the treatment and care of mentally ill persons are inadequate to address the risk these sexually violent predators pose to society. The Legislature further finds that the prognosis for rehabilitating sexually violent predators in a prison setting is poor, the treatment needs of this population are very long term, and the treatment modalities for this population are very different from the traditional treatment modalities for people appropriate for commitment under the Baker Act. It is therefore the intent of the Legislature to create a civil commitment procedure for the long-term care and treatment of sexually violent predators.
394.912 Sexually Violent Predator
(10) “Sexually violent predator” means any person who:
(a) Has been convicted of a sexually violent offense; and
(b) Suffers from a mental abnormality or personality disorder that makes the person likely to engage in acts of sexual violence if not confined in a secure facility for long-term control, care, and treatment.
394.917 Determination; commitment procedure; mistrials; housing; counsel and costs in indigent appellate cases.—
(1) The court or jury shall determine by clear and convincing evidence whether the person is a sexually violent predator. If the determination is made by a jury, the verdict must be unanimous. If the jury is unable to reach a unanimous verdict, the court must declare a mistrial and poll the jury. If a majority of the jury would find the person is a sexually violent predator, the state attorney may refile the petition and proceed according to the provisions of this part.
At the hearing, the state bears the burden of proving, by clear and convincing evidence, that the person’s mental condition remains such that it is not safe for the person to be at large and that, if released, the person is likely to engage in acts of sexual violence.
Iowa
In Iowa, Code 229 (229A.2) -Commitment of Sexually Violent Predators, defines a Sexually Violent Predator as: “a person who has been convicted of or charged with a sexually violent offense and who suffers from a mental abnormality which makes the person likely to engage in predatory acts constituting sexually violent offenses, if not confined in a secure facility.”
Massachusetts
Massachusetts General Laws Part I Title XVII Chapter 123A Section 1 defines a ”Sexually Dangerous Person”, any person who has been (i) convicted of or adjudicated as a delinquent juvenile or youthful offender by reason of a sexual offense and who suffers from a mental abnormality or personality disorder which makes the person likely to engage in sexual offenses if not confined to a secure facility; (ii) charged with a sexual offense and was determined to be incompetent to stand trial and who suffers from a mental abnormality or personality disorder which makes such person likely to engage in sexual offenses if not confined to a secure facility; or (iii) previously adjudicated as such by a court of the commonwealth and whose misconduct in sexual matters indicates a general lack of power to control his sexual impulses, as evidenced by repetitive or compulsive sexual misconduct by either violence against any victim, or aggression against any victim under the age of 16 years, and who, as a result, is likely to attack or otherwise inflict injury on such victims because of his uncontrolled or uncontrollable desires
Minnesota
In Minnesota, there are two civil commitments for dangerous sexual offenders Sexual Psychopathic Personality and Sexually Dangerous Person.
Minnesota Statutes CHAPTER 253D. CIVIL COMMITMENT AND TREATMENT OF SEX OFFENDERS
Subd. 15. Sexual Psychopathic Personality
“Sexual psychopathic personality” means the existence in any person of such conditions of emotional instability, or impulsiveness of behavior, or lack of customary standards of good judgment, or failure to appreciate the consequences of personal acts, or a combination of any of these conditions, which render the person irresponsible for personal conduct with respect to sexual matters, if the person has evidenced, by a habitual course of misconduct in sexual matters, an utter lack of power to control the person’s sexual impulses and, as a result, is dangerous to other persons.
Subd. 16. Sexually Dangerous Person
(a) A “sexually dangerous person” means a person who:
(1) has engaged in a course of harmful sexual conduct as defined in subdivision 8;
(2) has manifested a sexual, personality, or other mental disorder or dysfunction; and
(3) as a result, is likely to engage in acts of harmful sexual conduct as defined in subdivision 8.
(b) For purposes of this provision, it is not necessary to prove that the person has an inability to control the person’s sexual impulses.
Missouri
In Missouri, Section 632.480 defines a “Sexually Violent Predator” as “any person who suffers from a mental abnormality which makes the person more likely than not to engage in predatory acts of sexual violence if not confined in a secure facility and who:
(a) Has pled guilty or been found guilty, or been found not guilty by reason of mental disease or defect pursuant to section 552.030 of a sexually violent offense; or
(b) Has been committed as a criminal sexual psychopath pursuant to section 632.475 and statutes in effect before August 13, 1980.”
New Hampshire
New Hampshire Statutes Title X – Public Health (Chapter 125 – 129 – O) Chapter 135-E – Involuntary Civil Commitment of Sexually Violent Predators defines a Sexually Violent Predator” as any person who:
(a) Has been convicted of a sexually violent offense;
(b) Suffers from a mental abnormality or personality disorder that makes the person likely to engage in acts of sexual violence if not confined in a secure facility for long-term control, care, and treatment; and
(c) Is not eligible for involuntary admission under RSA 135-C or RSA 171-B.
New Jersey
New Jersey Sexually Violent Predator Act 30:4-27.24 defines a “Sexually Violent Predator” as a person who has been convicted, adjudicated delinquent or found not guilty by reason of insanity for commission of a sexually violent offense, or has been charged with a sexually violent offense but found to be incompetent to stand trial, and suffers from a mental abnormality or personality disorder that makes the person likely to engage in acts of sexual violence if not confined in a secure facility for control, care and treatment.
“Likely to engage in acts of sexual violence” means the propensity of a person to commit acts of sexual violence is of such a degree as to pose a threat to the health and safety of others.
“Mental abnormality” means a mental condition that affects a person’s emotional, cognitive or volitional capacity in a manner that predisposes that person to commit acts of sexual violence.










