Volume 44, Issue 3 (May 1999)

    Photographic Identification of Denim Trousers from Bank Surveillance Film

    (Received 12 January 1998; accepted 21 September 1998)


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    The ability to identify denim trousers (e.g., “blue jeans”) from bank surveillance film through side-by-side comparison is documented herein. Individual identifying characteristics that are generated in the manufacturing process and during normal wear-and-tear may be recognized on denim trousers and in photographs depicting those trousers. These characteristics may include folds, creases, and puckering which manifest themselves as high and low areas (“ridges and valleys”) along and adjacent to the seams and hems. As the jeans are worn and washed over time, the visibility of these ridges and valleys is amplified through abrasion of the ridges, resulting in a loss of dark dye and marked tonal brightening. Given sufficient abrasion, even small ridges may exhibit sufficient contrast against the dye-rich background to be recorded on bank surveillance films, permitting a comparison with trousers recovered from suspects. The application of this technique in a case involving a series of bombings and bank robberies in Spokane. Washington, is discussed.

    Author Information:

    Bruegge, RWV
    Examiner of Questioned Photographic Evidence, FBI Laboratory, Investigative Operations Support Section, Special Photographic Unit, Washington, DC

    Stock #: JFS14519J

    ISSN: 0022-1198

    DOI: 10.1520/JFS14519J

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    Title Photographic Identification of Denim Trousers from Bank Surveillance Film
    Symposium , 0000-00-00
    Committee E30