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Proceedings Paper

Contribution to the age determination of fingerprint constituents using laser fluorescence spectroscopy and confocal laser scanning microscopy
Author(s): Stephan Barcikowski; Jens Bunte; Andreas Ostendorf; Joerg Aehnlich; Rainer Herrmann
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Paper Abstract

The development of an instrument measuring the age of a fingerprint could raise the effectiveness and reliability of the dactyloscopy and lower the expenses of unnecessary fingerprint analysis. The purpose of the presented investigation is to determine the compounds in a fingerprint residue, which can be used as a time relevant indicator. The identification of the information carrier inside the secreted substance shall determine the main components, which allow age-related statements. A multiphoton excitation is used to determine the age without degenerating or changing samples in any way, so that the evidence is usable for further examination and documentation. Non-invasive fluorescence analysis on the basis of the surface concentration of fingerprint components is presented.

Paper Details

Date Published: 16 December 2004
PDF: 8 pages
Proc. SPIE 5621, Optical Materials in Defence Systems Technology, (16 December 2004); doi: 10.1117/12.579954
Show Author Affiliations
Stephan Barcikowski, Laser Zentrum Hannover e.V. (Germany)
Jens Bunte, Laser Zentrum Hannover e.V. (Germany)
Andreas Ostendorf, Laser Zentrum Hannover e.V. (Germany)
Joerg Aehnlich, Landeskriminalamt Niedersachsen (Germany)
Rainer Herrmann, Landeskriminalamt Niedersachsen (Germany)

Published in SPIE Proceedings Vol. 5621:
Optical Materials in Defence Systems Technology
Anthony W. Vere; James G. Grote; Francois Kajzar, Editor(s)

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