Friday, 9 September 2011

Textile Analysis for Forensic Testing




Textile as used in Forensic Evidence

Fibers represent one of the forensic evidences known as trace evidence.

The forensic examiners must handle a victim with care, to minimize fiber loss. Retrieving the victim's clothing as soon as possible is very necessary to prevent as much fiber loss as possible. Fibers are typically collected using adhesive tape.

The following details are particularly noted when analysing fibers. This helps to determine the source of the fibers.

1. Fiber Type: The presence of less common fibers at a  crime scene or on the clothing of victim or suspect increases its significance.

2. Fiber Colors: It greatly influences the significance of fiber comparison. Fading and discoloration further adds significance to a fiber association.

3. Number of Fibers: The greater the number of fibers on the body of a suspect or victim,  the more is the likely hood of a direct contact between individuals, however converse may not be true.

4. Fabric type: Loosley knit or woven fabric or new fabric shed more fibers.

Source 12


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