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Re-engineering forensic anthropology : new techniques in sharp force trauma analysis
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Norman, D. G., Burnett, B., Gibbons, G. J., Barnes-Warden, J. and Williams, M. A. (2012) Re-engineering forensic anthropology : new techniques in sharp force trauma analysis. In: URSS Research Seminar 2012, University of Warwick, 12 Oct 2012
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Abstract
In forensic anthropology the analysis of microscopic tool marks found in skeletal sharp force trauma is a challenging area. Many different imaging methods have been employed to measure cut mark characteristics in aid of developing diagnostic tools for estimating knife type used for these marks. Furthermore numerous experimental methods for creating tool marks for analysis have been used. A novel method for creating, analysing and presenting tool marks using reverse engineering and metrology was investigated. 5 Pig torsos prepared to mimic human anatomy were stabbed using seven different knives. Following chemical defleshing the ribs were micro-CT scanned for the analysis of tool marks left from the knives. Other methods including SEM, Digital microscopy and Laser scanning were also considered. Various geometrical measurements of the cut mark micro-morphology were taken. These measurements were statistically analysed using SPSS. Knife types gave statistically significant different cut mark width, length, wall angle, floor radius and shape (p<0.001). Knife sub-types and individual knives also gave statistically significant differencing in width and shape (p<0.001). Statistical classification of cut marks as either serrated or non-serrated made marks was shown to be 90% if width, length, wall angle and floor radius were accounted for. This indicated that determining knife type quantitatively is possible and could aid criminal investigators with their enquires. 3D models of these cut marks could also be developed for potential use in court for forensic expert testimony.
Item Type: | Conference Item (Poster) | ||||
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Subjects: | G Geography. Anthropology. Recreation > GN Anthropology | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Library of Congress Subject Headings (LCSH): | Forensic anthropology | ||||
Official Date: | 2012 | ||||
Dates: |
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Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Conference Paper Type: | Poster | ||||
Title of Event: | URSS Research Seminar 2012 | ||||
Type of Event: | Workshop | ||||
Location of Event: | University of Warwick | ||||
Date(s) of Event: | 12 Oct 2012 |
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