About

4n6 Ballistics is a forensic consulting business owned by Chris Coleman.

Chris Coleman has a BS in Forensic Science and over 25 years of experience in forensic science with city and county law enforcement agencies, including fifteen years with the Contra Costa County Sheriff’s Crime Laboratory (nine as sergeant and supervisor). He has been court qualified in firearms and toolmark examination, shooting incident reconstruction, crime scene processing, blood spatter interpretation, controlled substance analysis and latent print processing. He holds expertise in firearms examination, shooting reconstruction, crime scene processing and blood spatter analysis. He is a fellow of the American Board of Criminalistics and has held certifications in firearms, toolmark, distance determination and gunshot residue by the Association of Firearms and Toolmark Examiners (AFTE). He has published and extensively taught various firearms-related subjects to law enforcement, medical and legal groups, including a recurring shooting incident reconstruction class with the California Criminalistics Institute (CCI). He is a California POST certified Firearms instructor and range master. He is also a recent past president of the California Association of Criminalists (CAC).