Marvin W. Acklin, PhD, ABPP
Steven Taketa, PsyD
Date: February 15, 2018

 

Purpose of presentation: To provide participants with basic definitions, concepts, and tools in the structured professional judgment of targeted violence risk assessment and management.

Definitions:

The pathway concept:

The pathway concept has become foundational in targeted violence and risk assessment. The purpose of threat assessment is the interruption of the pathway.

Instruments

Workplace Assessment of Violence Risk-21 (WAVR-21).

The Workplace Assessment of Violence Risk (WAVR-21) is a 21-item coded instrument for the structured assessment of workplace and campus targeted violence risk.

WAVR-21 Risk Factor Items

Terrorist Radicalization Assessment Protocol (TRAP-18)

Based on open source sample of 111 lone-actor terrorists from the United States and Europe. Eight proximal warning behaviors and 10 distal characteristics for active risk management or active monitoring respectively.

Meloy’s warning behavior typology: “these are proximal and dynamic patterns which may indicate a rating risk for targeted violence. The warning behaviors are not discrete variables, but patterns for analysis.” The behavioral patterns are coded as present it if any pre-offense behaviors found to have a reasonably certain fit with the proper descriptions.

Pathway-subjects engage in various behaviors that encompass part of research, planning, or preparation for terrorist act or implementation of such an attack.

Fixation-certain behaviors indicate someone’s increasingly pathological preoccupation with the personal cause. There is an accompanying deterioration in relationships or occupational performance.

Identification-persons have a psychological desire to be a pseudo-commando or have a warrior mentality. This includes closely associating with weapons or other military or law enforcement paraphernalia, identify with previous attackers or assassins, or proclaiming themselves as ages to advance a particular cause or belief system.

Novel aggression-for the first time, subjects committed an act that appears unrelated to a pathway behavior: they do so to test her ability to become violent.

Leakage-when planning to harm a target through an attack, persons communicate such intent to a third-party.

Last Resort-subjects demonstrate through word or deed of violent action or time imperative or display increasing desperation or distress. 2 such individuals, there is no alternative other than violence, and the consequences are justified

Directly communicated threat-individuals communicated directly to the target or law enforcement before violent action.

Distal factors:

 

Historical-Clinical-Risk – 20 v. 3.

Version 3 of the HCR-20 is the latest version of a comprehensive set of professional guidelines for violence risk assessment and management based on the Structured Professional Judgement (SPJ) model. The HCR-20 was developed to help structured decisions about violence risk. Since the publication of Version 1 in 1995 and Version 2 in 1997, it has become the world’s most widely used and best validated violence risk assessment instrument. It has been translated into 20 languages and adopted or evaluated in more than 35 countries. Version3, developed over the past 5 years on the basis of extensive clinical beta testing and empirical evaluation, promises to be even more useful than its predecessors.

Items are coded as present or absent and with degree of relevance.

Historical      (10 items)

Clinical         (5 items)

Risk Management (5 items)   

 

HCR-20 SCORING
HCR-20 SCORING

 

References

Association of Threat Assessment Professionals (2006). Risk Assessment Guideline Elements for Violence: Considerations for assessing the risk of future violent behavior.

Kevin S. Douglas, K. S., Hart, S. D., Webster, C. D., Belfrage, H., Guy, L.S., & Wilson, C. M. (2014).

Historical-Clinical-Risk Management-20, Version 3 (HCR-20V3): Development and Overview, International Journal of Forensic Mental Health, 13, 2.

Meloy, J. R. (2016). Identifying warning behaviors of the individual terrorists. FBI Law Enforcement Bulletin.

Meloy, J. R., & Genzman, J. (2016). The clinical threat assessment of the lone-actor terrorist. Psychiatric Clinics of North America, 39, 4, 649-662..

Meloy, J. R., & Gill, P. (2016). The loan-actor terrorist and the Trap-18. Journal of Threat Assessment and Management, 3, 1, 37-52.

Meloy, J. R., Hoffman, J., Et al. (2011). The role of warning behaviors and threat assessment: An exploration and suggested typology. Behavioral Sciences and the Law.

Meloy, J. R., & Pollard, J. W. (2017). Lone-actor terrorism and impulsivity. Journal of Forensic Sciences.

Meloy, J. R., White, S.G., & Hart, S. (2013). Workplace assessment of targeted violence risk: The development and reliability of the WAVR-21. Journal of Forensic Sciences, 58, 5, 1353-1358.

Meloy, J. R., & Yakley, J. (2014). The violent true believer as a lone wolf-Psychoanalytic perspectives on terrorism. Behavioral Sciences and the Law.

Simons, A., & Meloy, J. R. (2017). Foundations of Threat Assessment and Management. Handbook of Behavioral Criminology, Springer International Publishing.