Shooting Reconstruction Expert Witnesses

Sunset, Texas

Law Enf & Criminal Justice, Police Practices & Procedures - Police Practices & Procedures, Use of Force Analysis, Deadly/Excessive Force, Active Shooter Response, Officer Involved Shooting, Death in Custody, Crime Scene Reconstruction, Shooting Reconstruction, Jail/Correctional Suicide, Police Tactics, Crisis/Hostage Negotiation, Correctional Policies & Procedures, School Security

I am currently commissioned as a (Master Certified) law enforcement officer by the Texas Department of Public Safety (DPS). In January of 2023, I retired from the Texas Department of Public Service after 28 years of service. The first 12 years were with the Texas Highway Patrol Division, and the last 16 years were with the Texas Ranger Division. Before starting my DPS career, I worked for five years with the Walker County Sheriff’s Office in Huntsville, Texas, as a commissioned correctional officer, jail shift supervisor, and commissioned patrol deputy. From 1990 to 1992, I served as a Jailer in the Walker County Sheriff’s Office Jail Division in Huntsville, Texas. After becoming commissioned as a peace officer and starting my time as a patrol deputy, I maintained my Jailer commission and assisted in the jail when needed until I resigned in 1995 to attend the DPS academy. In that role, I was responsible for the direct supervision, care, and safety of inmates housed in the facili...

Morgan, Utah

Mechanical Engineering, Firearms & Ballistics - Failure Analysis, Intellectual Property, Ammunition Reloading, Manufacturing, Product Liability, Unintentional Discharge, Shooting Reconstruction, Drop Testing, Trigger Pull Testing, Root Causes, Shooting Accident, Inspection, Ballistics, Forensic Analysis, Stress Calculation, Material Properties, Tolerance Analysis, GD&T, Kinematics

Ryan D. Cook has been licensed for over 20 years as a Professional Engineer (PE) in mechanical engineering, with more than 25 years of design and analysis experience. He has designed over 1500 parts, including 5 firearm product families and has been issued 10 patents. He earned Bachelor of Science and Master of Science degrees in mechanical engineering at Brigham Young University. Mr. Cook has been designing Browning and Winchester rifles, shotguns, and handguns since 1999, including the Winchester Model 9410 – winner of the Shooting Industry Academy of Excellence 2001 Shotgun of the Year award. This work includes concept generation, computer models, stress analyses, material specifications, and manufacturing process selections, which may include plastic or metal injection molding (MIM), machining, stamping, spring winding, additive manufacturing, casting, and powdered metal. His experience also comes from hands-on assembly, testing, diagnosis, and debugging. He analyzes failu...