A Comparison Study of Hair Examination Methodologies

    Volume 49, Issue 6 (November 2004)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 3


    Kolowski, JC

    Wallace, MM
    John Jay College of Criminal Justice, City University of New York, New York, NY

    Prinz, M
    Office of the Chief Medical Examiner, New York, NY

    Petraco, N

    De Forest, PR
    John Jay College of Criminal Justice, City University of New York, New York, NY

    Abstract

    A study was conducted to investigate the accuracy between two methods of hair analysis: PCR-STR DNA analysis and microscopic comparison analysis. Standard sets of pubic hairs were collected from volunteers, and unknown sets were generated from these samples. Three out of five (60%) of the hairs analyzed produced full DNA profiles that were correctly matched to the standard sets. DNA analysis was inconclusive (partial or no DNA profile) for two out of five (40%) of the samples. In contrast, the microscopic comparison analysis correctly matched four out of five (80%) of the samples to the standard sets but mis-identified one out of five (20%) of the samples. These results reinforce the practice of preliminary microscopic hair examination in narrowing down a set of hairs for DNA analysis. Microscopic comparison analysis is sufficiently reliable to remain a rapid and inexpensive method for forensic hair analysis.


    Paper ID: JFS2003430

    DOI: 10.1520/JFS2003430

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    Title A Comparison Study of Hair Examination Methodologies
    Symposium , 0000-00-00
    Committee E30