Forensic Analysis Instruments: Microscope vs. Borescope
Instruments like the stereomicroscope, comparison microscope, and borescope are used in forensic analysis for individual examination, side-by-side comparison, superimposition, and barrel analysis. The comparison microscope is utilized for analyzing fired cartridge cases, while the borescope helps in detecting projectile velocity. However, the comparison microscope has limitations including manual and time-consuming processes, stress, and eyestrain. These instruments play a crucial role in database analysis and crime investigation.
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Presentation Transcript
Comparison Microscope and Borescope Ujaala Jain Assistant Professor, SoFS
INSTRUMENTS FOR ANALYSIS Stereomicroscope- Individual examination Comparison Microscope- Side by Side, Superimposition Borescope- Analysis of the Barrel BDAS- Detection of projectile velocity IBIS/ NIBIN- Database analysis
COMPARISON MICROSCOPE REFERENCE FIRED CARTRIDGE CASE EVIDENCE FIRED CARTRIDGE CASE Louise Walzer, JPSO Crime Lab
EVIDENCE FIRED CARTRIDGE CASE REFERENCE FIRED CARTRIDGE CASE Louise Walzer, JPSO Crime Lab
EVIDENCE REFERENCE Louise Walzer, JPSO Crime Lab
LIMITATIONSOF COMPARISON MICROSCOPE: Manual, tedious and time consuming Evidences compared piece by piece to vast inventory of crime/ test exhibits Necessity of searching each piece manually Severe stress and eyestrain slowed the process even more
IMAGES OF THE BARREL Full view of the barrel Side view of the barrel
