Firearms Identification and Forensic Ballistics
FirearmID.com contains information on firearms identification, including identification of bullets, cartridge cases, and other ammunition components as having been fired from a specific firearm. Also describes the responsibilities of an expert witness.

Firearms Identification and Unusual Forensic Ballistics
Dr. J. K. Sinha's forensic firearms site containing his papers on unusual bullet markings, cartridge and firearms identification.

Association of Firearm and Toolmark Examiners
The Association of Firearm and Toolmark Examiners is the professional organization for those in the forensic ballistics field. This site contains news, information and links.

The History of Firearm and Toolmark Identification by James E. Hamby
Famous firearm cases, early researchers, organizations, books, journals, and instruments.

Forensic Consultant Firearms and Ballistics
Contact details for consultant/expert witness, specializing in firearms, ballistics, stria comparisons, GSR interpretations. Offering training and accreditation from UK.

Christopher C. Trumble Consultant
Services include toolmark examination, case file review, trajectory analysis, distance determination, serial number restoration, weapon failure analysis, and crime scene reconstruction, training courses, workshops from Tampa, FL.

Richard N. Ernest
Ballistics consulting showing areas of expertise, notable cases, publication list and offering training seminars from Fort Worth, TX.

Robinson's Forensic Firearms
Ballistics and toolmark examiner, offering consultancy and expert testimony. Includes associations service areas, profile and contacts in Cheshire, Connecticut.