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Full-Text Articles in Social and Behavioral Sciences
Hanging By A Thread: Enhancing The Forensic Value Of Dyed Cotton Trace Evidence Through The Application Of Novel Techniques In Fiber Discrimination, Rachel M. Russo
Hanging By A Thread: Enhancing The Forensic Value Of Dyed Cotton Trace Evidence Through The Application Of Novel Techniques In Fiber Discrimination, Rachel M. Russo
The Pegasus Review: UCF Undergraduate Research Journal
This thesis examines the capability of current techniques in fiber classification such as UV-visible microspectrophotometry (MSP) (for dye in situ and/or extracted) to discriminate between fibers from sources known to be different. When these methods fail to adequately distinguish the fibers, novel alternative techniques'such as pulsed pumped laser-induced fluorescence spectroscopy (LIF) and liquid chromatography-mass spectrometry (LC-MS)'are utilized to provide definitive forensic evidence.
The FBI Dye Extraction Classification and Chromatography Schemes: Forensic Fiber Examination Guidelines provides the methodology used by the majority of crime labs across the United States (Fong, 1984). In the case of cotton fibers'the most frequently encountered fiber …