ISSN: 0022-1198
CODEN: JFSCA
Page Count: 8

Consecutive Matching Striation Criteria: A General Critique
Bunch, SG
Firearms-Toolmarks Unit, FBI Laboratory, DC

(Received 15 December 1998; accepted 25 October 1999)

Abstract

In the forensic science of firearms and toolmark identification, examiners traditionally have drawn conclusions of identity from subjective criteria. This paper critically explores the general validity of one proposed objective-criteria regime—that of counting consecutive matching striations on fired bullets. Practical considerations are discussed, as well as theoretical ones, with both discussions viewed from the perspective of Bayesian logic. It is concluded that drawbacks exist for this particular objective-criteria regime, but that research and logical analysis should continue.

Keywords:
forensic science, firearms, toolmarks, objective criteria, consecutive matching striations, line counting, validity

Paper ID: JFS14817J
DOI: 10.1520/JFS14817J
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