Domestic violence offender typology is a system for classifying abusers based on their behavior, psychology, and violence patterns. Originating in the 1980s and 1990s, this presentation discusses these researched and peer-reviewed typologies and their application to crisis negotiations. The discussion uses real-life examples to demonstrate the offender types. The integrated debrief allows the consideration and application of these, using a real-world negotiation. The presentation includes audio files, BWC video, interrogation videos, text negotiations, and lessons learned from a case featured on Dateline, 20/20, and 48 Hours. Hot topics include victims' rights, de-escalation, domestic violence, strangulation, team dynamics, CNT/tactical collaboration, and negotiating with command.

Det. Justin Marshall of the Broomfield Police Department in Colorado serves in his primary assignment as the department's core persons/major crimes detective. A negotiator since 2018, he also serves as the vice president of the Rocky Mountain Hostage Negotiators, a regional association of crisis/Hostage negotiators from Colorado, Wyoming, Nebraska, and New Mexico. Marshall represents RMHN on the National Council of Negotiators Associations and serves as the Domestic Violence representative to the NTOA Negotiators BASE (Board for Advocacy, Standards, and Excellence). He also has experience as a use-of-force instructor and critical incident response team investigator, and has many other past assignments.