Development of a mobile toolmark characterization/comparison system [Development of a mobile, automated toolmark characterization/comparison system]
Abstract
Abstract Since the development of the striagraph, various attempts have been made to enhance forensic investigation through the use of measuring and imaging equipment. This study describes the development of a prototype system employing an easy‐to‐use software interface designed to provide forensic examiners with the ability to measure topography of a toolmarked surface and then conduct various comparisons using a statistical algorithm. Acquisition of the data is carried out using a portable 3D optical profilometer, and comparison of the resulting data files is made using software named “ MANTIS ” (Mark and Tool Inspection Suite). The system has been tested on laboratory‐produced markings that include fully striated marks (e.g., screwdriver markings), quasistriated markings produced by shear‐cut pliers, impression marks left by chisels, rifling marks on bullets, and cut marks produced by knives. Using the system, an examiner has the potential to (i) visually compare two toolmarked surfaces in a manner similar to a comparison microscope and (ii) use the quantitative information embedded within the acquired data to obtain an objective statistical comparison of the data files. This study shows that, based on the results from laboratory samples, the system has great potential for aiding examiners in conducting comparisons of toolmarks.
- Authors:
-
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1350049
- Alternate Identifier(s):
- OSTI ID: 1401495
- Report Number(s):
- IS-J-9208
Journal ID: ISSN 0022-1198; PII: S0925838816337938
- Grant/Contract Number:
- AC02-07CH11358; DE‐AC02‐07CH11358
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Forensic Sciences
- Additional Journal Information:
- Journal Volume: 62; Journal Issue: 1; Journal ID: ISSN 0022-1198
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; forensic science; toolmarks; portable prototype; quantitative measurements; statistical comparisons; optical profilometer
Citation Formats
Chumbley, Scott, Zhang, Song, Morris, Max, Spotts, Ryan, and Macziewski, Chad. Development of a mobile toolmark characterization/comparison system [Development of a mobile, automated toolmark characterization/comparison system]. United States: N. p., 2016.
Web. doi:10.1111/1556-4029.13233.
Chumbley, Scott, Zhang, Song, Morris, Max, Spotts, Ryan, & Macziewski, Chad. Development of a mobile toolmark characterization/comparison system [Development of a mobile, automated toolmark characterization/comparison system]. United States. https://doi.org/10.1111/1556-4029.13233
Chumbley, Scott, Zhang, Song, Morris, Max, Spotts, Ryan, and Macziewski, Chad. Wed .
"Development of a mobile toolmark characterization/comparison system [Development of a mobile, automated toolmark characterization/comparison system]". United States. https://doi.org/10.1111/1556-4029.13233. https://www.osti.gov/servlets/purl/1350049.
@article{osti_1350049,
title = {Development of a mobile toolmark characterization/comparison system [Development of a mobile, automated toolmark characterization/comparison system]},
author = {Chumbley, Scott and Zhang, Song and Morris, Max and Spotts, Ryan and Macziewski, Chad},
abstractNote = {Abstract Since the development of the striagraph, various attempts have been made to enhance forensic investigation through the use of measuring and imaging equipment. This study describes the development of a prototype system employing an easy‐to‐use software interface designed to provide forensic examiners with the ability to measure topography of a toolmarked surface and then conduct various comparisons using a statistical algorithm. Acquisition of the data is carried out using a portable 3D optical profilometer, and comparison of the resulting data files is made using software named “ MANTIS ” (Mark and Tool Inspection Suite). The system has been tested on laboratory‐produced markings that include fully striated marks (e.g., screwdriver markings), quasistriated markings produced by shear‐cut pliers, impression marks left by chisels, rifling marks on bullets, and cut marks produced by knives. Using the system, an examiner has the potential to (i) visually compare two toolmarked surfaces in a manner similar to a comparison microscope and (ii) use the quantitative information embedded within the acquired data to obtain an objective statistical comparison of the data files. This study shows that, based on the results from laboratory samples, the system has great potential for aiding examiners in conducting comparisons of toolmarks.},
doi = {10.1111/1556-4029.13233},
journal = {Journal of Forensic Sciences},
number = 1,
volume = 62,
place = {United States},
year = {Wed Nov 16 00:00:00 EST 2016},
month = {Wed Nov 16 00:00:00 EST 2016}
}
Search WorldCat to find libraries that may hold this journalWeb of Science
Works referenced in this record:
Objective Analysis of Impressed Chisel Toolmarks
journal, August 2015
- Spotts, Ryan; Chumbley, L. Scott
- Journal of Forensic Sciences, Vol. 60, Issue 6
Virtual Tool Mark Generation for Efficient Striation Analysis ,
journal, February 2014
- Ekstrand, Laura; Zhang, Song; Grieve, Taylor
- Journal of Forensic Sciences, Vol. 59, Issue 4
Optimization of a Statistical Algorithm for Objective Comparison of Toolmarks
journal, November 2014
- Spotts, Ryan; Chumbley, L. Scott; Ekstrand, Laura
- Journal of Forensic Sciences, Vol. 60, Issue 2
Validation of Tool Mark Comparisons Obtained Using a Quantitative, Comparative, Statistical Algorithm: VALIDATION OF TOOL MARK COMPARISONS
journal, June 2010
- Chumbley, L. Scott; Morris, Max D.; Kreiser, M. James
- Journal of Forensic Sciences, Vol. 55, Issue 4
Angular Determination of Toolmarks Using a Computer-Generated Virtual Tool
journal, April 2015
- Spotts, Ryan; Chumbley, L. Scott; Ekstrand, Laura
- Journal of Forensic Sciences, Vol. 60, Issue 4
Development of a 3D-based Automated Firearms Evidence Comparison System
journal, November 2002
- Bachrach, Benjamin
- Journal of Forensic Sciences, Vol. 47, Issue 6