STUDY: Latent Fingerprint Development on the non-porous surface at a different time intervals
During this examination, no fingerprint powders or chemicals were applied to the surface before or after imaging. Only a handprint was applied on the surface and the handprint and fingerprint were checked with Forenscope 4K systems.
Test surface: Water-based matt white paint (The most common type)
This case is aimed at how the latent fingerprints on the wall will be searched and displayed under UVA light without laser 254nm UVC. Fingerprint searching without using a laser or 254 nm UVC light source. Fingerprint searching with UVC light sources and Laser lights are a significant health and safety issue for the crime scene investigator due to radiation being transmitted through the air and quartz but absorbed by ordinary glass. However, Protective clothing should be worn before using UVC light as it protects the entire body, not just the eyes.
Important Note: ForenScope 4K Software Images can be saved in RAW or BMP, and videos in RAW or MP4 format. You can simply convert images into JPG or PNG format and Videos into AVI format with an internal converter in the software.
The image size (the image is taken in .bmp format: 4640×3506 pixels and photo size: 46.5MB
The original photos cannot be stored on the website due to their high resolution. The photos have been converted to JPG format for this post.
No image processing method has been used in photographs
| Latent Fingerprint Development | ||
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| Wall Test 1 Distance ~ 2 Meters White Light- VIS Image |
Wall Test 1 Distance ~1 Meter White Light- VIS Image |
Wall Test 1 Distance ~ Quarter Meter White Light- VIS Image |
| Below Images have been taken after 15 minutes of leaving the handprint on the concrete wall | ||
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| Wall Test 1 Distance ~ 2 Meters Forenscope UVA Light Forenscope 4K Pro Image |
Wall Test 1 Distance ~ 1 Meter Forenscope UVA Light Forenscope 4K Pro Image |
Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 24 hours (one day). Total Application Time: Real-time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 72 hours ( 3 days) Total Application Time: Real-Time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 96 hours (4 days) Total application time: Real-Time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 240 hours (10 days) Total application time: Real-Time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 360 hours (15 days) Total application time: Real-Time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 480 hours (20 days) Total Application time: Real-Time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 600 hours (25 days) Total Application Time: Real-Time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| The below image has been taken after 720 hours (30 days) Total Application Time: Real-Time |
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| Wall Test 1 Forenscope Lens Forenscope UVA Light Forenscope 4K Pro Image |
| Forenscope Wall Test 2 | |
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| Wall Test 2 Distance ~ 1.5 Meters White Light VIS Image |
Wall Test 2 Distance ~ 1 Meter White Light VIS Image |
