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NCJ Number: 148899 Find in a Library
Title: Latent Fingerprint Development on a Cement Matrix
Journal: Canadian Society of Forensic Science Journal  Volume:27  Issue:1  Dated:(March 1994)  Pages:1-4
Author(s): R G R Munroe
Date Published: 1994
Page Count: 4
Type: Report (Technical)
Format: Article
Language: English; French
Country: Canada
Annotation: In the case of a woman killed in 1990 in Winnipeg, Manitoba, Canada, latent fingerprint development attempted on porous media was not successful; instead, a Cyanoacrylate-fixed Sudan Black procedure proved to be more effective.
Abstract: The preference for using the Cyanoacrylate-fixed Sudan Black procedure was based on latent development quality, high contrast, and print longevity. The degree of absorption into the Sudan Black matrix was much less than other techniques, and the Sudan Black solution contained a certain degree of particulate matter that appeared to adhere to latent fingerprints and enhance development. The Royal Canadian Mounted Police's Forensic Identification Support Section verified and suggested enhancements to preliminary results with the Cyanoacrylate-fixed Sudan Black procedure. For example, applying a fine water spray on the treated surface caused latent fingerprints to become visible against the dampened background because of different permeability levels between the Cyanoacrylate-treated latent and the cement matrix. A case study of the Sudan Black procedure is included. 2 photographs
Main Term(s): Science and Technology
Index Term(s): Canada; Crime in foreign countries; Criminal investigation; Criminalistics; Criminology; Evidence identification; Fingerprint image quality; Foreign police; Forensic sciences; Latent fingerprints; Suspect identification; Victims in foreign countries
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