Epidermal Impression : December 19, 2008

Epidermal Impression
Image Data
File Name: 50D_02571
Model: Canon EOS 50D
Lens: Canon EF 100mm F/2.8 USM Macro
Date: 12.19.08 4:25am
Focal Length: 100mm (160mm)
Shutter: 4 s
F-Stop: F5.6
ISO: 100
Ex Bias: -4/3
Program: Aperture priority
Metering Mode: Evaluative
Flash: Off
Focus Mode: Manual focus

Epidermal Impression

Comments: 1   Views: 443   Like/Fave (10)   Studio
12.19.2008
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A latent print means any chance or accidental impression left by friction ridge skin on a surface, regardless of whether it is visible or invisible at the time of deposition. Electronic, chemical and physical processing techniques permit visualization of invisible latent print residue whether they are from natural secretions of the eccrine glands present on friction ridge skin, or whether the impression is in a contaminant such as motor oil, blood, paint, ink, etc.

Latent prints may exhibit only a small portion of the surface of the finger and may be smudged, distorted, or both, depending on how they were deposited. For these reasons, latent prints are an inevitable source of error in making comparisons, as they generally contain less clarity, less content, and less undistorted information than a fingerprint taken under controlled conditions, and much, much less detail compared to the actual patterns of ridges and grooves of a finger.

Comments (0)

Colin   12.19.08 8:51am  
Sorry, I'll try not to leave any more prints at your place when I break in to "borrow" Maui for crime fighting. Ironic, yes?

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