Journal Published Online: 01 January 1992
Volume 37, Issue 1

Contrast Enhancement of Cyanoacrylate-Developed Latent Fingerprints Using Biological Stains and Commercial Fabric Dyes

CODEN: JFSCAS

Abstract

Cyanoacrylate-developed latent fingerprints may be difficult to see or photograph if they are on light-colored surfaces. Biological stains and Rit® fabric dyes were tested for their ability to stain cyanoacrylate-developed latent fingerprints. Methanolic solutions of gentian violet, safranin bluish stain, diamond fuchsin, methyl green, iodine green, and Janus green B were found to stain cyanoacrylate-developed fingerprints on polyethylene, porcelain, and aluminum beverage cans. Hot (60°C) aqueous solutions of seven different shades of Rit® fabric dyes were found to stain cyanoacrylate-developed latent fingerprints on polyethylene, porcelain, aluminum beverage cans, and Styrofoam cups. The latent fingerprints stained with safranin bluish stain were strongly fluorescent under 312 nm ultraviolet light; latent fingerprints stained with gentian violet and diamond fuchsin were weakly fluorescent.

Author Information

Kempton, JB
The George Washington University, Washington, DC
Rowe, WF
The George Washington University, Washington, DC
Pages: 7
Price: $25.00
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Stock #: JFS13216J
ISSN: 0022-1198
DOI: 10.1520/JFS13216J