Forensic Analysis Instruments: Microscope vs. Borescope

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
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REFERENCE
FIRED 
CARTRIDGE
CASE
EVIDENCE
FIRED 
CARTRIDGE
CASE
COMPARISON MICROSCOPE
Louise Walzer, JPSO Crime Lab
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EVIDENCE 
FIRED CARTRIDGE CASE
REFERENCE
FIRED CARTRIDGE CASE
Louise Walzer, JPSO Crime Lab
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EVIDENCE
REFERENCE
Louise Walzer, JPSO Crime Lab
L
IMITATIONS
 
OF
 C
OMPARISON
M
ICROSCOPE
:
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
 
 
Borescope
IMAGES  OF THE BARREL
Side view of the barrel
Full view of the barrel
Slide Note
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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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  1. Comparison Microscope and Borescope Ujaala Jain Assistant Professor, SoFS

  2. 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

  3. COMPARISON MICROSCOPE REFERENCE FIRED CARTRIDGE CASE EVIDENCE FIRED CARTRIDGE CASE Louise Walzer, JPSO Crime Lab

  4. EVIDENCE FIRED CARTRIDGE CASE REFERENCE FIRED CARTRIDGE CASE Louise Walzer, JPSO Crime Lab

  5. EVIDENCE REFERENCE Louise Walzer, JPSO Crime Lab

  6. 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

  7. Borescope

  8. IMAGES OF THE BARREL Full view of the barrel Side view of the barrel

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