Sometimes the smallest piece of evidence found at a crime scene can be the thing that provides a major clue or becomes a major factor in winning a conviction. Hairs found on a victim routinely point to a suspect and because DNA analysis can often be done, this provides a definitive identification of the perpetrator. Likewise, fibers obtained from victims clothes or in the area of the crime scene can guide investigators in the direction of a particular suspect. Fiber analysis by the forensic laboratory has become increasing important in many cases. A caution, however, is that fiber evidence unlike DNA is not unique. It can not definitively identify a suspect but it can serve to narrow the field of potential suspects.

HTH



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Note added at 12 mins (2008-02-19 20:22:58 GMT)
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Color Me Busted -Sometimes fiber analysis can prove to be very strong evidence in a case. This was particularly true in the case of the abduction and murder of Kristen Harrison in Ohio in 1982. The young girl was raped, murdered and left in a field about thirty miles from her home. The forensic investigators on the scene found orange fibers in her hair. These fibers were polyester and had a distinctive shape; a shape similar to fibers used in carpet. These fibers were relatively unique because of their color and shape. They were also similar to orange fibers found on a twelve year old girl found murdered eight months prior in the same general area.





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Note added at 14 mins (2008-02-19 20:24:53 GMT)
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