I have over 40 years experience in criminalistics examination. I have experience conducting investigative assistance for the police, courts, FBI, and U.S. Army. My areas of expertise include: firearm examination and comparison; gunpowder analysis; ballistics; bullet trajectory; puncture wound analysis; knife wound analysis; crime scene and evidence analysis; reconstruction of accidents, assaults, and homicides; and tire track or footprint examination. I have more than 35 years expert witness experience with consultations, deposition, and courtroom testimony.