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NCJRS Abstract

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NCJ Number: 113509 Find in a Library
Title: Methods of Latent Print Development (From International Forensic Symposium on Latent Prints -- Proceedings, 1987, Quantico, Virginia, P 15-24, -- See NCJ-113506)
Author(s): H C Lee; R E Gaensslen
Date Published: 1988
Page Count: 10
Sponsoring Agency: National Institute of Justice/
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Document: PDF
Type: Best Practice/State-of-the-Art Review
Language: English
Country: United States of America
Annotation: This paper surveys the most current chemical methods and systematic approaches for the enhancement and visualization of latent fingerprints. Four classes of fingerprint powders are examined: regular, luminescent, metallic, and thermoplastic.
Abstract: The survey then reviews iodine, cyanoacrylate, and fluorescent fuming procedures. The advantages and limitations of using ninhydrin to process latent prints on paper are discussed, as are new reagents for amino acid detection and ninhydrin analogs. Also considered are special enhancement techniques for visualizing fingerprints under unique conditions such as bloody fingerprints and prints on the sticky surfaces of adhesive tapes, on the skin, and on surfaces that have been exposed to water. The author describes the use of lasers, the scanning electron microscope, X-ray radiography, and infrared microscopy in detecting fingerprints. Logical schemes for the sequential development of latent fingerprints are examined and illustrated by diagrams. Approximately 80 references. 6 figures.
Main Term(s): Latent fingerprints
Index Term(s): Fingerprint image quality
Note: For microfiche, see NCJ-113506.
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