Martial Arts Expert Witnesses

Arroyo Grande, California

Police Practices & Procedures, Law Enf & Criminal Justice - use of force, police use of force, law enforcement use of force, self defense, arrest and control, police excessive force, excessive force, defensive tactics, martial arts, strangulation, choke hold, jiu jitsu, fight or flight, stress response, officer involved shooting, police shooting, OIS, taser, Security

Dr. Chuck J. Rylant is a Doctor of Psychology and a Federal and State Court qualified expert witness with over 27 years of professional experience in civilian self-defense and law enforcement use-of-force analysis. He has been retained in more than 260 cases and has provided testimony in jurisdictions across the United States, including Alabama, Alaska, Arizona, California, Connecticut, Florida, Minnesota, Nevada, New Hampshire, New Mexico, North Dakota, Ohio, Texas, Utah, and Washington, D.C. Dr. Rylant's work focuses on the act of force itself — whether by a civilian or a law enforcement officer — encompassing the tactical, behavioral, and scientific factors that bear on it. His areas of engagement include civilian self-defense, police use-of-force, tactics, training, de-escalation, and strangulation, including carotid restraint and vascular neck restraint techniques. His expertise draws on peer-reviewed behavioral and performance science — including, among other areas, memory,...

SAVANNAH, Georgia

Athletics & Recreation, Technology - Gymnastics, Cheerleading, Performance tumbling (theater, parade, dance, martial arts), standard of care, 3D modeling, litigation animation, Foam Pits, Trampoline, climbing walls, zip lines, attenuation devices, Set/Stage Hazards, set/stage hazards, Aerial Circus Arts, Stunt injuries, Stage & Entertainment Venue Safety, Production

A veteran coach in the world of Gymnastics and Cheerleading, Coach Wayne has taught private lessons, camps, clinics, and classes in both the United States and Europe. Among his accolades, CoachWayne authored the Amazon.com top-seller (7-video collection) "How to do a Better Back Handspring" and numerous other publications in the field. His "TumblingTips" articles are read by hundreds of thousands of tumbling students and instructors worldwide. He was the Executive Coach and daily Trainer of Olympic Gymnast, Zuzana Sekerova (SVK). He has been a Master Coach and Clinician for more than 100 professional tumbling instructors for cheerleading, dance, and gymnastics through his Tumbling Instructor Skill Certification clinics. He served as the Head Coach for the Savannah College of Art and Design Cheerleading team, overseeing competitions and games. Having performed as a gymnast, dancer, and cheerleader, CoachWayne continues to share his experience with new generations of students and i...

Pineville, Louisiana

Legal - Self-Defense, conflict situations, physical encounters, fight, bar fight, martial arts, hand-to-hand combat, combat, first aggressor, physical violence, physical threat assessment, dynamics of violence, dynamics of self-defense, appropriateness of force

Thomas “Tommy” Davenport, Jr. is a martial arts practitioner with decades of practical experience and ongoing study in both the applied and theoretical dimensions of self-defense and physical conflict. He holds a black belt in Taekwondo and a black sash in 7 Star Praying Mantis Kung Fu, and he is a former world champion in martial arts combat. In addition to his martial arts background, Tommy is a practicing attorney and professor of law. This combination of experience uniquely positions him to evaluate self-defense and hand-to-hand combat matters through both a practical combative lens and the applicable legal doctrines that often shape such cases. As an expert in martial arts and self-defense, Tommy provides consulting and testimonial services in matters involving self-defense and physical confrontation. As a consultant, he assists attorneys and litigants in understanding the actions at issue, evaluating the conduct involved, and preparing to clearly and effectively present the r...

Sandy, Utah

Police Practices & Procedures, Human Factors - Police Uses of Force, Police Practices & Training, Civilian Self-Defense, Biomechanics, Investigations, Memory, Martial Arts, Criminal Gangs, Behavioral Profiling, Crime Analysis, Specialized Interviews, Tactical Operations, Aquatic Crime Scenes & Investigations, Human Factors analysis

As a decorated law enforcement officer with service in both urban and rural municipal agencies and a county sheriff’s department, Bruce Champagne has completed assignments as a field training officer, patrol and investigations supervisor, corrections officer and supervisor, criminal gang investigator, forensic diver, major crimes detective, civilian review board representative, SWAT leader and member, and firearms/defensive tactics instructor. Bruce was a previous president of the Utah Tactical Officers Association, Utah Gang Investigators Association, Utah Forensic Divers Association, and Utah Peace Officers Association. Bruce is a member of the International Law Enforcement Educators and Trainers Association (ILEETA), Academy of Criminal Justice Sciences, International Association of Forensic Criminologists, Association of Force Investigators, Society for Integrity in Force Investigation and Reporting, and National Tactical Officers Association (NTOA), and is a certified instruct...