ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 October 1982
Page Count: 5

Use of Narrow-Band-Pass Filters to Enhance Detail in Latent Fingerprint Photography by Laser
Dalrymple, BE
Senior forensic analyst, Forensic Identification Services, Ontario Provincial Police, Ontario

(Received 28 December 1981; accepted 19 February 1982)

Abstract

The barrier filter used to date to photograph fingerprints by laser does not eliminate substrate luminescence that can reduce or destroy the value of the fingerprint. Use of a narrow-band-pass filter with an appropriate transmission spectrum can often isolate the desirable fingerprint luminescence and yield a better photograph of the print.

Keywords:
criminalistics, fingerprints, photography, lasers, narrow-band-pass filters

Paper ID: JFS12195J
DOI: 10.1520/JFS12195J
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