Visualization Method for Fingerprints on Skin by Impression on a Polyethylene Terephthalate (PET) Semirigid Sheet

    Volume 37, Issue 2 (March 1992)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 8


    Xing, L-P
    Beijing Forensic Science Institute, Beijing,

    Guo, Y-C
    Beijing Forensic Science Institute, Beijing,

    (Received 29 March 1991; accepted 9 August 1991)

    Abstract

    Based on the phenomenon that static electricity attracts dust, a polyethylene terephthalate (PET) semirigid sheet coated with printing ink was used to visualize impressions of fingerprints on the skin of living and dead bodies. Compared with visualization methods for perspiration fingerprints, this method recovers better images for a longer time after the fingerprint has been deposited on skin. Fingerprints transferred to the PET sheet are photographed with sidelighting using an ordinary light source. For fingerprints that yield inadequate contrast, an argon-ion laser can be used to improve the contrast.


    Paper ID: JFS13268J

    DOI: 10.1520/JFS13268J

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    Title Visualization Method for Fingerprints on Skin by Impression on a Polyethylene Terephthalate (PET) Semirigid Sheet
    Symposium , 0000-00-00
    Committee E30