Firearm signatures on a fired cartridge case include the firing

Download scientific diagram | Firearm signatures on a fired cartridge case include the firing pin impression (A), the ejector mark (B), and the breech face impression (C) (Courtesy of Ultra Electronics Forensic Technology, Inc. [3]).  from publication: Topography measurements and applications in ballistics and tool mark identifications | The application of surface topography measurement methods to the field of firearm and toolmark analysis is fairly new. The field has been boosted by the development of a number of competing optical methods, which has improved the speed and accuracy of surface topography | Topography | ResearchGate, the professional network for scientists.

Theodore VORBURGER, National Institute of Standards and Technology, NIST, Semiconductor and Dimensional Metrology Division

Firearm signatures on a fired cartridge case include the firing pin

Schematic of stylus instrument for measuring surface topography [21].

Theodore VORBURGER, National Institute of Standards and Technology, NIST, Semiconductor and Dimensional Metrology Division

Topography measurements and applications in ballistics and tool mark identifications. - Abstract - Europe PMC

Firearm signatures on a fired cartridge case include the firing pin

3D LEA from a 9 mm fired bullet acquired with a confocal microscope .

Theodore VORBURGER, National Institute of Standards and Technology, NIST, Semiconductor and Dimensional Metrology Division

Striations on one of several land engraved areas (LEAs) on a fired