skip navigation

PUBLICATIONS

Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

The document referenced below is part of the NCJRS Virtual Library collection. To conduct further searches of the collection, visit the Virtual Library. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.

 

NCJ Number: 10746 Find in a Library
Title: SOME NEW DEVELOPMENTS IN THE CHEMICAL DETECTION OF LATENT FINGERPRINTS
Journal: POLICE RESEARCH BULLETIN  Issue:21  Dated:(SPRING 1973)  Pages:31-36
Author(s): J R MORRIS; G C GOODE
Corporate Author: Great Britain Police
Research Services Branch
United States of America
Date Published: 1973
Page Count: 6
Sponsoring Agency: Great Britain Police
London, England
Publication Number: U
Format: Article
Language: English
Country: United Kingdom
Annotation: REVIEW OF CURRENT CHEMICAL TECHNIQUES FOR FINGERPRINT DETECTION AND DESCRIPTION OF A NEW REAGENT WHICH OFFERS PROMISE.
Abstract: THE NEWLY DEVELOPED TECHNIQUE INVOLVES THE USE OF 4-DIMETHYLAMINOCINNAMALDEHYDE (DMAC) WHICH REACTS IN AN ORGANIC SOLVENT WITH UREA UNDER ACIDIC CONDITIONS TO GIVE A MAGENTA-COLORED STABLE PRODUCT. COLOR DEVELOPMENT IS COMPLETE WITHIN A FEW MINUTES AT ROOM TEMPERATURE AND THE COLOR CONTRAST BETWEEN THE FINGERPRINT RIDGES AND THE RIDGE INTERSPACES IS SUCH THAT EXCELLENT PHOTOGRAPHIC RECORDING ON ORTHOCROMATIC FILM WITHOUT THE AID OF FILTERS IS POSSIBLE. THE REAGENT IS ESSENTIALLY SPECIFIC FOR UREA-THE REACTION WITH AMINO-ACIDS AND AMMONIA BEING NEGLIGIBLE BY CONTRAST. ITS OVERALL SENSITIVITY IS EQUAL TO THAT OF THE MOST SENSITIVE NINHYDRIN FORMULATION FOR AMINO-ACIDS. (AUTHOR ABSTRACT MODIFIED)
Index Term(s): Document analysis; Evidence collection; Fingerprints
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=10746

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.