HCR-20 Violence Risk Assessment Scheme
The Historical-Clinical-Risk Management-20 (Webster, Douglas, Eaves, & Hart, 1997), or HCR-20, is a violence risk assessment scheme intended for use in forensic psychiatric, civil psychiatric, and prison institutional and community settings. Its purpose is to structure clinical decisions about the likelihood of violent behaviour, and to inform risk reducing treatment and management strategies. It contains 20 risk factors that span its three subscales. The HCR-20 is an example of a Structured Professional Judgment (SPJ) risk assessment instrument. It is published by the Mental Health, Law, and Policy Institute at Simon Fraser University.
The HCR-20 has now been officially translated into 16 languages (see below). There are approximately 75 datasets on the HCR-20 from over a dozen countries (see list of disseminations, and Annotated Bibliography, below). It has been adopted by numerous mental health, forensic, and criminal justice agencies in Canada, the US, Europe, Asia, Australia, and New Zealand to help make risk assessment and management decisions.
The HCR-20 is currently under revision (see below).
Visit the “Training” link for examples of workshops I have conducted on the HCR-20, and violence risk assessment more broadly.
Translation Information and Requests
Please contact myself, or any of the HCR-20 authors, for information about the translation application procedure and process.
HCR-20 Violence Risk Management Companion Guide
The field of violence risk assessment has progressed in recent years. However, assessment alone is not enough to prevent further violence. What is needed is effective risk management and intervention strategies that take modifiable risk factors into account. This was the rationale for the HCR-20 Violence Risk Management Companion Guide – to recommend risk management and intervention strategies that stem from such modifiable risk factors.
The HCR-20 Violence Risk Management Companion Guide builds on the original HCR-20 Violence Risk Assessment Scheme by devoting a chapter to each of the Clinical and Risk Management Scale items from the original HCR-20. It also includes general overview chapters on risk assessment, risk management, and the bridge between the two.