Sex Offender Risk Assessments

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Sex Offender Risk Assessments (SORS, SVPASI, and the SOMB Checklist)

The General Assembly also mandated that DCJ develop a risk assessment tool to assist in the determination of sexually violent predators (SVPs). An offender's score on the Sex Offender Risk Scale (SORS) is one of four criteria identified by the state Sex Offender Management Board (SOMB) to be included in the recommendation to the court regarding the SVP designation for offenders whose crime qualifies for possible SVP status, per Colorado Revised Statute 18-3-414.5(1). The SORS, then, is incorporated into a larger decision-making tool (the Colorado Sexually Violent Predator Assessment Screening Instrument).

The SORS was developed using actuarial methods and cannot be modified without additional empirical research. The non-SORS SVP designation criteria were developed by an expanded membership of the SOMB that convened for the purpose of explicitly defining the statutory criteria. The non-SORS criteria may change over time should policy makers decide to reconsider the current screening process.

Each of the seven dynamic items in the SOMB Checklist (three of which are included in the SORS) statistically correlated with problems in treatment and supervision within the first 12 months following sentencing. The instrument was developed and tested without instructions, yet reliability rates for each item were very high. It has the capacity to be used over time to document an offender's changes in each of the domains.

Accompanying are the handbooks, instruments, and additional resource material.

Sexually Violent Predator Assessment Screening Instruments (SVPASI) (2018 revision)
Handbook 470KB
Instrument (This form has been revised to allow editable fields) - Open and "Save As" the document on your desktop 445KB
Please contact us at for instructions on how to securely send the completed form.

SOMB Checklist Instrument
SOMB Checklist Instrument 159KB 

Colorado Division of Criminal Justice Adult Sex Offender Risk Assessment Screening Instrument
Progress Report 1.a (June 1999) 78.7KB 
English, K. , Retzlaff, P. , & Kleinsasser, D. (2002) The Colorado Sex Offender Risk Scale. Journal of Child Abuse, 11, 77-96. 1.01MB