Expert witness since 1970 in consultation, depositions, and court testimony; Ballistics and Firearms-ammo, lands/grooves, projectiles, penetration, exit wounds, human factors. Over 50 years in identifying firearms and projectiles, trajectory, distances and performance, destination of travel and impact. Former Law Enforcement Officer, current FFL Class 3 & 7 license; Licensed Private Investigator; Professional Gunsmith; Ammo Manufacturer.