Doctor of Psychology. Federal and State Court qualified expert witness. Testified on civilian self-defense, strangulation, and human factors (memory, attention, fight or flight, decision making, and perception/reaction times).

Testified on police use-of-force, tactics, training, de-escalation, and human factors (memory, attention, fight or flight, decision making, and perception/reaction times).

Retained in over 200 cases and testified in Alabama, Alaska, Arizona, California, Connecticut, Florida, Minnesota, Nevada, New Hampshire, North Dakota, Ohio, Texas, Utah, and Washington DC.

Certified Force Science Analyst and Advanced Force Science Specialist. California Peace Officer Standards and Training (P.O.S.T.) use-of-force subject matter expert. Retired police officer/detective, S.W.A.T. member, and P.O.S.T. certified firearms, baton, chemical agents, Taser, and arrest and control (ARCON) trainer. Former police academy lead ARCON and use-of-force instructor.

Author of Shots Fired: The Psychology Behind Officer Involved Shootings and Police Use of Force Decisions: Psychological and Physiological Factors Affecting Performance Under Pressure.

Current civilian self-defense trainer and law enforcement use-of-force instructor—Brazilian jiu-jitsu black belt.