Primer composition and memory effect of weapons--some trends from a systematic approach in casework

Sébastien Charles1, Bart Nys, Nadia Geusens

  • 1Institut National de Criminalistique et Criminologie, Chaussée de Vilvorde 100, B-1120 Bruxelles, Belgium. sebastien.charles@just.fgov.be

Summary

Gunshot residue analysis reveals lead, barium, and antimony primers are common. Researchers found a significant weapon "memory effect" impacting residue analysis, particularly for .22 and .32 calibers.

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