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DISCRIMINATION OF AUTOMOBILE CARPET FIBERS USING MULTIPLE ANALYTICAL TECHNIQUES AND THE SUBSEQUENT CREATION OF A SEARCHABLE DATABASE.

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Date Issued:
2006
Abstract/Description:
Forensic fiber examination is an important part of trace evidence analysis. Fibers may be recovered from a crime scene that could link a particular suspect to the scene. Clothing fibers are most frequently encountered but automobile carpeting fibers may also be recovered. An understanding of the frequency of occurrence and the discrimination power of different analytical techniques is needed in order to better establish the evidentiary value of automobile carpet fiber evidence. Seventy-five automobile carpet fiber samples were analyzed using a series of techniques ranging from nondestructive to destructive. These techniques included polarized light microscopy, fluorescence microscopy, microspectrophotometry, Fourier-transform infrared spectroscopy, microtomy (cross section analysis), dye extraction and liquid chromatography-mass spectrometry. Based on the information obtained from these techniques an overall discrimination of 98.02% was calculated. Only 55 of 2775 pairwise comparisons were indistinguishable. The information was subsequently entered into a searchable database for general public use.
Title: DISCRIMINATION OF AUTOMOBILE CARPET FIBERS USING MULTIPLE ANALYTICAL TECHNIQUES AND THE SUBSEQUENT CREATION OF A SEARCHABLE DATABASE.
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Name(s): Dorrien, Derek, Author
Sigman, Michael , Committee Chair
University of Central Florida, Degree Grantor
Type of Resource: text
Date Issued: 2006
Publisher: University of Central Florida
Language(s): English
Abstract/Description: Forensic fiber examination is an important part of trace evidence analysis. Fibers may be recovered from a crime scene that could link a particular suspect to the scene. Clothing fibers are most frequently encountered but automobile carpeting fibers may also be recovered. An understanding of the frequency of occurrence and the discrimination power of different analytical techniques is needed in order to better establish the evidentiary value of automobile carpet fiber evidence. Seventy-five automobile carpet fiber samples were analyzed using a series of techniques ranging from nondestructive to destructive. These techniques included polarized light microscopy, fluorescence microscopy, microspectrophotometry, Fourier-transform infrared spectroscopy, microtomy (cross section analysis), dye extraction and liquid chromatography-mass spectrometry. Based on the information obtained from these techniques an overall discrimination of 98.02% was calculated. Only 55 of 2775 pairwise comparisons were indistinguishable. The information was subsequently entered into a searchable database for general public use.
Identifier: CFE0001483 (IID), ucf:47103 (fedora)
Note(s): 2006-12-01
M.S.
Sciences, Department of Chemistry
Masters
This record was generated from author submitted information.
Subject(s): Forensic
Fiber
Textiles
Microscopy
Database
Persistent Link to This Record: http://purl.flvc.org/ucf/fd/CFE0001483
Restrictions on Access: public
Host Institution: UCF

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