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NCJRS Abstract

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NCJ Number: 219554 Find in a Library
Title: Development of Latent Fingerprints on the Sticky Side of Adhesive Tapes: Phase Transfer Catalyst-Based Formulation
Journal: Canadian Society of Forensic Science Journal  Volume:40  Issue:1  Dated:March 2007  Pages:1-13
Author(s): O. P. Jasuja; Gagan Deep Singh; G. S. Sodhi
Date Published: March 2007
Page Count: 13
Type: Report (Technical)
Format: Article
Language: English
Country: Canada
Annotation: This study attempts to develop a formulation based on Rose Bengal dye and a phase transfer catalyst, for the purpose of developing latent fingerprints on different types of adhesive tapes and to overcome the shortcomings of earlier methods.
Abstract: Latent fingerprints could be developed very effectively with the help of a very simple method using phase transfer catalyst (PTC). The reagent is inexpensive, nontoxic, and easy to prepare. The reagent is equally effective in cases of fresh as well as older prints. The shelf life of the reagent was such that it produced the same level of quality in developed prints for 5 months after the solution was initially prepared. The PTC and Rose Bengal dye formulation develops fingerprints on all types of adhesive tapes of such a quality that even third level detail can be seen. One of the most difficult surfaces to process for latent fingerprints is the sticky side of adhesive tapes. A number of methods to develop fingerprints on adhesive tapes have been previously reported. This study sought to develop a formulation based on Rose Bengal dye and PTC in order to develop latent fingerprints on different types of adhesive tapes and overcome the shortcomings of earlier methods. A comparison of the proposed method is discussed with already established methods to assess the advantages and shortcomings of this innovative formulation. Tables, figures and references
Main Term(s): Latent fingerprints
Index Term(s): Crime laboratories; Evidence identification; Fingerprint image quality; Fingerprints; Forensic sciences; Suspect identification
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