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NCJ Number: 249331 Find in a Library
Title: ESDA (R)-Lite Collection of DNA From Latent Fingerprints on Documents
Journal: Forensic Science International - Genetics  Volume:16  Dated:May 2015  Pages:8-12
Author(s): Dane T. Plaza; Jamia L. Mealy; J. Nicholas Lane; M. Neal Parsons; Abigail S. Bathrick; Donia P. Slack
Date Published: May 2015
Page Count: 5
Sponsoring Agency: National Institute of Justice (NIJ)
Washington, DC 20531
Grant Number: 2010-DN-BX-K191
Document: HTML
Type: Report (Grant Sponsored); Report (Study/Research); Research (Applied/Empirical); Test/Measurement
Format: Article; Document (Online)
Language: English
Country: United States of America
Annotation: This study systematically evaluated the Electrostatic Detection Apparatus (ESDA®) for its ability to non-destructively collect DNA from latent fingerprints deposited on various paper substrates for short tandem repeat (STR) DNA profiling.
Abstract: The ability to detect and non-destructively collect biological samples for DNA processing would benefit the forensic community by preserving the physical integrity of evidentiary items for more thorough evaluations by other forensic disciplines. Overall, the current study determined that the evaluated non-destructive ESDA collection technique has great potential for real-world forensic implementation. Fingerprints were deposited on a variety of paper substrates that included resume paper, cotton paper, magazine paper, currency, copy paper, and newspaper. Three DNA collection techniques were performed: ESDA collection, dry swabbing, and substrate cutting. The efficacy of each collection technique was evaluated by the quantity of DNA present in each sample and the percent profile generated by each sample. Both the ESDA and dry swabbing non-destructive sampling techniques outperformed the destructive methodology of substrate cutting. A greater number of full profiles were generated from samples collected with the non-destructive dry swabbing collection technique than were generated from samples collected with the ESDA; however, the ESDA also allowed the user to visualize the area of interest while non-destructively collecting the biological material. The ability to visualize the biological material made sampling straightforward and eliminated the need for numerous, random swabbings/cuttings. (Publisher abstract modified)
Main Term(s): Forensic sciences
Index Term(s): DNA (Deoxyribonucleic Acid); DNA extraction; DNA Typing; Evidence collection; Evidence preservation; Investigative techniques; NIJ grant-related documents; NIJ Resources; Suspect identification
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