Evaluation of automotive lenses for forensic applications
Master of Science (MS)
First Advisor's Name
José R. Almirall
First Advisor's Committee Title
Second Advisor's Name
Third Advisor's Name
Date of Defense
Hit and run type accidents often leave trace evidence behind including broken fragments of automotive lenses. In order to improve the evidential value of the forensic examinations of automotive lenses, this study aims to characterize a large number and diverse group of plastic lenses. The five instrumental techniques utilized to assess the physical and chemical characteristics of the plastic lenses were: IR, PGC, Raman, SEMEDS, and LA-ICP-MS. ER was able to differentiate the 225 lenses into 11 groups. PGC was able to differentiate 34 groups from the 152 samples analyzed. Nineteen groups were determined from 101 samples analyzed by Raman. LA-ICP-MS was able to differentiate 29 groups from 80 samples analyzed. SEM-EDS was determined not to be a useful technique for this analysis. The combined discrimination resulted in the differentiation of 54 of the 73 lens samples analyzed. This study concludes that automotive lenses can be useful in forensic work.
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Gross, Susan T., "Evaluation of automotive lenses for forensic applications" (2001). FIU Electronic Theses and Dissertations. 4076.
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