- 01: Introduction
- 02: History
- 03: Propellants, Firearms, and Ammunition Development
- 04: Modern Firearms Manufacture
- 05: Small Arms Ammunition
- 06: Evidence Handling Procedures
- 07: Equipment and Instrumentation
- 08: Examination of Firearms
- 09: Cartridge and Shotshell Examination
- 10: Characterization and Evaluation of Fired Projectiles
- 11: Bullet Comparison and Identification
- 12: Gunshot Residue and Distance Determination
- 13: Toolmark Identification
- 14: Communicating Results
- Resources
Advanced Case Linkage and
Fired Cartridge Case Comparisons
Home > Cartridge and Shotshell Examination > Case Linkage > Advanced Case Linkage and Fired Cartridge Case Comparisons
IBIS image data acquisition workstation
Advanced computer-based tools are widely used by laboratories for screening thousands of firearms-related evidence items for potential linkages of incidents. These tools include computer and optical hardware as well as software for managing a combination of specialized algorithms, pattern recognition, and digital imaging. The product is a preliminary computer-based selection of high-probability associations that may be subsequently confirmed or eliminated by a firearms examiner.
The current predominant system for accomplishing these comparisons is the Integrated Ballistics Identification System (IBIS), developed by Forensic Technology, Incorporated (FTI).
It should be stressed that a high correlation score by the IBIS system is not a sufficient basis for court testimony; an examination by a qualified firearm examiner is required for courtroom presentation. Technology has provided for more efficient handling of steadily mounting caseloads and the increasing volume of firearms-related evidence.
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Computer correlations
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Bullet correlations
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