Article
Statistical Confirmation of Empirical Observations Concerning Tool Mark Striae
AFTE Journal
Document Type
Article
Disciplines
Publication Date
7-1-2007
Abstract
Toolmarks produced by 44 sequentially manufactured screwdriver tips have been characterized for surface roughness using a profilometer. Toolmarks were produced in lead at angles of 30°, 60°, and 85°. A computer program developed to compare and match the profilometer data has been used to show that marks from a single tip produced at similar angles yield much higher correlation values than marks produced from the same tip but at different angles. This analysis provides statistical support for the widely-accepted empirical observation that toolmark striae must be reproduced at similar angles in order to be unambiguously identified as being made by a particular tool.
Copyright Owner
AFTE Journal
Copyright Date
2007
Language
en
File Format
application/pdf
Citation Information
D. Faden, J. Kidd, J. Craft, L. Scott Chumbley, et al.. "Statistical Confirmation of Empirical Observations Concerning Tool Mark Striae" AFTE Journal Vol. 39 Iss. 3 (2007) p. 205 - 214 Available at: http://works.bepress.com/lawrence_genalo/21/
This article is from AFTE Journal 39 (2007): 205. Posted with permission.