Objective Analysis of Impressed Chisel Toolmarks.

Citation data:

Journal of forensic sciences, ISSN: 1556-4029, Vol: 60, Issue: 6, Page: 1436-40

Publication Year:
Usage 86
Abstract Views 34
Full Text Views 21
Downloads 16
Link-outs 15
Captures 6
Readers 4
Exports-Saves 2
Social Media 1
Tweets 1
Citations 1
Citation Indexes 1
Repository URL:
Spotts, Ryan; Chumbley, L. Scott
Medicine; Biochemistry, Genetics and Molecular Biology; forensic science; statistical comparison; chisel; impression; algorithm; toolmark
Most Recent Tweet View All Tweets
article description
Historical and recent challenges to the practice of comparative forensic examination have created a driving force for the formation of objective methods for toolmark identification. In this study, fifty sequentially manufactured chisels were used to create impression toolmarks in lead (500 toolmarks total). An algorithm previously used to statistically separate known matching and nonmatching striated screwdriver marks and quasi-striated plier marks was used to evaluate the chisel marks. Impression toolmarks, a more complex form of toolmark, pose a more difficult test for the algorithm that was originally designed for striated toolmarks. Results show in this instance that the algorithm can separate matching and nonmatching impression marks, providing further validation of the assumption that toolmarks are identifiably unique.