The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Regular Paper
Application of Lasers for Criminal Investigation: Focusing on Fingerprint Dete
Norimitsu AKIBA
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2019 Volume 47 Issue 6 Pages 300-

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Abstract
Lasers are widely used in criminal investigations. Fingerprints are one of the most important clues among forensic samples taken in the field. Although fingerprints are detected on various substrates, fingerprints cannot be visualized in some cases when the fluorescence of the substrate is strong. Therefore, we performed fingerprint visualization with a pulsed laser by time-resolved spectroscopy. We also examined the aging of fingerprints and fingerprint components. The fingerprints were visualized using various lasers such as UV, visible, IR, ns-pulsed, fs-pulsed, and CW. In addition, the application of lasers to forensic samples other than fingerprints was described in this paper.
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© 2019 by The Laser Society of Japan
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