Journal Published Online: 01 January 1984
Volume 29, Issue 1

Room Light and Laser Development of Latent Fingerprints with Enzymes

CODEN: JFSCAS

Abstract

A very pronounced enhancement in detectability of reasonably fresh latent finger-prints is obtained when the ninhydrin method is combined with enzyme treatment. Specifically, trypsin and pronase were found to be effective, particularly the former. When ridge detail in room light remains inadequate even upon enzyme treatment, laser examination following zinc chloride treatment can produce strong additional enhancement to render such prints identificable. Our results with older prints have been marginal to date. Reasons for this and directions for future study are discussed.

Author Information

Roland Menzel, E
Center for Forensic Studies Texas Tech University, Lubbock, TX
Everse, J
Texas Tech University Health Sciences Center, Lubbock, TX
Everse, KE
Texas Tech University Health Sciences Center, Lubbock, TX
Sinor, TW
Texas Tech University, Lubbock, TX
Burt, JA
Texas Tech University, Lubbock, TX
Pages: 11
Price: $25.00
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Stock #: JFS11640J
ISSN: 0022-1198
DOI: 10.1520/JFS11640J