(Received 28 December 1981; accepted 19 February 1982)
Published Online: October
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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.
Senior forensic analyst, Forensic Identification Services, Ontario Provincial Police, Toronto, Ontario
Stock #: JFS12195J