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NCJRS Abstract

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  NCJ Number: NCJ 242716     Find in a Library
  Title: Evaluation of the Impact of Different Visualization Techniques on DNA in Fingerprints
  Author(s): Stina Norlin ; Martina Nilsson ; Per Heden ; Marie Allen
  Journal: Journal of Forensic Identification  Volume:63  Issue:2  Dated:March/April 2013  Pages:189 to 204
  Date Published: 04/2013
  Page Count: 16
  Annotation: This study examined the effect that different fingerprint visualization techniques have on DNA content in fingerprints left on a variety of surface types.
  Abstract: More than 200 latent fingerprints were deposited on various surfaces under controlled conditions and then developed using 9 different visualization techniques. DNA was extracted from the fingerprints and the samples were subsequently quantified for nuclear and mitochondrial DNA content, using real-time PCR. The results show that several of the evaluated visualization techniques (e.g., Wet Powder and black fingerprint powder) do not damage DNA and allow DNA analysis to a large extent. However, some of the visualization techniques (e.g., physical developer and silver nitrate) seem to eliminate DNA completely, highly degrade DNA, or introduce inhibitors, preventing subsequent analysis. Furthermore, the results demonstrate great variation in DNA amounts detected in samples developed with the same method. (Published Abstract)
  Main Term(s): Fingerprint classification
  Index Term(s): Fingerprints ; Automated fingerprint processing ; Evidence identification and analysis ; Evidence ; Latent fingerprints ; Forensics/Forensic Sciences ; Fingerprint image quality ; DNA fingerprinting ; Fingerprint detection techniques
  Publisher URL: 
  Type: Research (Applied/Empirical)
  Country: United States of America
  Language: English
  To cite this abstract, use the following link:

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