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NCJ Number: NCJ 242082     Find in a Library
Title: Latent Print Development Using Low Pressure Sublimation Vapor Deposition: Evaluation of a Prototype System
Journal: Journal of Forensic Identification  Volume:62  Issue:6  Dated:November/December 2012  Pages:642 to 659
Author(s): H. Swofford ; J. Ballard ; C. Beegle ; S. Harbin ; C. Knaggs
Date Published: 12/2012
Page Count: 18
Publisher: http://www.theiai.org 
Type: Report (Study/Research)
Language: English
Country: United States of America
Annotation: The method of developing latent prints using common latent print processing techniques in the low pressure sublimation vapor deposition system developed latent prints of comparable quality to traditional processing methods.
Abstract: Numerous processing methods for the development of latent fingerprints have been introduced over the years, but many require hazardous and destructive chemical solvents to yield successful results. A novel technology involving a sublimation gas injection delivery system in a low pressure chamber has been developed in a prototype form that eliminates the use of chemical solvents for many of the most common processing techniques. In this evaluation, 231 latent prints were deposited and cut in half. One half was processed using the prototype system and the other half was processed using traditional methods of 7 common latent print processing techniques on 11 different substrates. The method of developing latent prints using common latent print processing techniques in the low pressure sublimation vapor deposition system developed latent prints of comparable quality to traditional processing methods. The most noteworthy improvements include safety of developing latent fingerprints on multiple forms of evidence (porous, nonporous, semiporous), no known interference with drug chemistry and DNA examinations, elimination of hazardous and destructive chemical solvents, standardization of processing regimens (controlled material or chemical concentrations and processing times) programmed into the system computer, and the convenience of using a single system for many common processing techniques used for the development of latent prints. (Published Abstract)
Main Term(s): Criminology
Index Term(s): Fingerprints ; Suspect identification ; Latent fingerprints ; Fingerprint image quality ; Fingerprint detection techniques
   
  To cite this abstract, use the following link:
https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=264244

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