Comparison of bullet stration pattern using ibis bullettrax-3d and aliconainfinite focus microscope
Firearm identification is a process to determine whether a bullet or cartridge was fired by a particular weapon based on individual characteristic. The unique patterns created on the surfaces of the bullet or cartridge carry an individual characteristic which is useful for firearm identification. F...
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| Format: | Monograph |
| Language: | English |
| Published: |
Universiti Sains Malaysia
2016
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| Online Access: | http://eprints.usm.my/62624/ http://eprints.usm.my/62624/1/MARIA%20MAGDALINA%20ANAK%20DENNIS%20JANTING%20-%20e.pdf |
| Summary: | Firearm identification is a process to determine whether a bullet or cartridge was fired by a particular weapon based on individual characteristic. The unique patterns created on the surfaces of the bullet or cartridge carry an individual characteristic which
is useful for firearm identification. Four different pistols of same model were used in this
study and six bullets were obtained per pistol. The objective of this study is to exercise
objective comparison of bullet striation patterns within the same model of semiautomated
pistols, Walther P99 by automated comparison performed using Integrated
Bullet Identification System (IBIS) BULLLETRAX-3D and Alicona-Infinite Focus
Microscope. IBIS BULLETTRAX-3D gives 3D images of the bullet’s surfaces while
Alicona-Infinite Focus Microscope also gives images and surface topography
measurement for identification. Analysis using IBIS BULLETTRAX-3D showed
striation images which required the final decision by the examiner for bullet identification.
Meanwhile, Alicona-Infinite Focus Microscope also captured visual images of the bullet
surface as well as surface topography profile with dataset for each sample. Pairwise
comparison with Pearson Product Moment Correlation (PPMC) from summarised
datasets showed positive correlation among the bullet fired from the gun (r = 0.99 and
above). Both methods potentially may complement each other and will be beneficial for
forensic firearm identification. |
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