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Reference ballistic imaging database performance.

Jan De Kinder1, Frederic Tulleners, Hugues Thiebaut

  • 1Institut National de Criminalistique et de Criminologie (NICC/INCC), Chaussée de Vilvorde 98-100, B-1120 Brussels, Belgium. jan.dekinder@just.fgov.be

Forensic Science International
|March 24, 2004
PubMed
Summary

Creating a comprehensive ballistic image database for all firearms faces significant challenges. Current technology struggles to reliably link recovered cartridge cases, hindering its effectiveness as a law enforcement tool.

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Area of Science:

  • Forensic Science
  • Firearms Examination
  • Criminalistics

Background:

  • Ballistic imaging databases aid law enforcement in linking crime scenes and firearms via cartridge cases.
  • The success of current systems has prompted proposals for a universal reference ballistic image database (RBID) for all firearms.

Purpose of the Study:

  • To evaluate the performance and feasibility of a large-scale reference ballistic image database (RBID).
  • To assess the effectiveness of an RBID in identifying firearm origins from fired cartridge cases.

Main Methods:

  • Fired 4200 cartridge cases from 600 9mm Para Sig Sauer P226 pistols.
  • Imaged one Remington cartridge per pistol in the RBID; fired additional cartridges of various brands.
  • Correlated samples against the RBID, including same-make and different-brand cartridges, and expanded database scenarios.

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Main Results:

  • 72% of same-make (Remington) cartridges ranked in the top 10 when correlated against the RBID.
  • 21% of different-brand cartridges ranked in the top 10.
  • Ranking performance generally improved with increased RBID size and inclusion of class characteristics.

Conclusions:

  • A comprehensive reference ballistic image database for new firearms presents significant practical difficulties.
  • Current RBID technology is not yet an effective or efficient tool for law enforcement investigations.
  • Further research is needed to overcome limitations in ballistic evidence matching.