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NCJRS Abstract

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NCJ Number: 229071 Find in a Library
Title: Effectiveness of 1,2-Indandione-Zinc Formulations and Comparison with HFE-Based 1,8-Diazafluoren-9-One for Fingerprint Development
Journal: Journal of Forensic Identification  Volume:59  Issue:6  Dated:November/December 2009  Pages:654-678
Author(s): Vaughn Sears; Rebecca Batham; Stephen Bleay
Date Published: December 2009
Page Count: 25
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: This study compared two formulations of fingerprint development for effectiveness.
Abstract: This study investigated the modification of a 1,2 indandione-zinc (Ind-Zn) formulation for developing fluorescent fingerprints and compared the modified formulation to 1, 8-diazafluoren-9-one (DFO). Results indicated that DFO developed higher quality fingerprints across the range of paper substrates studied. On fresher fingerprints, the fluorescence intensity was also higher for fingerprints developed using DFO, but appeared to drop off as the age of the fingerprints increased. In terms of technique effectiveness, the number of high-quality fingerprints developed was the primary measure, with fluorescence intensity having a secondary impact on the ease with which developed fingerprints could be imaged and captured. However, there are indications that Ind-Zn may give better results than DFO on brown papers and other lower grade papers such as newspapers and magazines. Fingerprints deposited on these substrates gave more variable results because of the effects that surface printing has on the quality and fluorescence intensity. Table, figures, and references
Main Term(s): Fingerprint image quality; Fingerprints
Index Term(s): Crime scene; Crime Scene Investigation; Forensic sciences; Victim identification
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