Main Article Content
This research aims to study individual characteristics on surface of a bullet fired from polygonal-rifled barrel and to apply super-high vertical resolution non contact 3D surface profiler to compare individual characteristics on bullet surface. Four 9-mm full metal jacket bullets were fired from three individual semi automatic firearms with polygonal rifling. The results show the efficiency of the super-high vertical resolution non contact 3D surface profiler in identifying the individual characteristics on the surface of a bullet fired from polygonal-rifled barrel. Mean and statistical relationship of depth (Z-axis) of land-engraved areas from the same and different firearms show that the Z-axis of individual characteristics on the surface of a bullet fired from the same polygonal-rifled firearm has no difference in statistical significance at 0.05. Thus, the super-high vertical resolution non contact 3D surface profiler can be applied to identify and compare individual characteristics on the surface of a bullet fired from a polygonal-rifling barrel.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Akejakrawan, S., Suebpongsiri, S., and Boonmak, T. (2017a). The application of 3D Microscope for examination of marking on bullet surface. KKU Research Journal (Graduate Study), 17(3), 1-7. (Thai)
Akejakrawan, S., Suebpongsiri, S., and Boonmak, T. (2017b). Photography surface of bullet 3D for comparison individual marks of bullet fired from polygonal rifling. Veridian E-Journal, Science and Technology Silpakorn University, 4(3), 36-49. (Thai)
Cooper, C. E. (2008). Forensic Science. USA: Dorling Kindersley Ltd., p. 33.
Criminal Defense Resource Center. (2008, December). Criminal Defense Newsletter, 31(12), 2-3.
Gerules, G., Bhatia, S. K., and Jackson, D. E. (2013). A survey of image processing techniques and statistics for ballistic specimens in forensic science. Science and Justice, 53(2), 236-250.
Nikon Corporation. (2014). Super-high Vertical Resolution Non-Contact 3D Surface Profiler BW-S500/BW-D500 Series. Tokyo: Nikon Corporation.
Vanderkolk, J. R. (2009). Forensic Comparative Science: Qualitative Quantitative Source Determination of Unique Impressions, Images, and Objects. London: Academic Press, p.138.
White, P. C. (2008). Crime Scene to Court: The Essentials of Forensic Science. Cambridge: The Royal Society of Chemistry, pp. 283-284.