Algerian Journal of Forensic Sciences and Criminology
Volume 1, Numéro 1, Pages 25-27
2023-07-16
Enhancement Of Fingermarks On Adhesive Surfaces, Using Formulation Based On Rhodamine 6g Dye
Authors : Rahou Mohamed . Bsaira Hocine .
Abstract
The enhancement of latent prints on adhesive tape can provide the forensic scientist with undeniable information about who handled the tape. At the INCC/GN, the fingerprint department processes adhesive tapes in order to reveal latent prints for identification purpose. This treatment requires the use of two separate techniques on both sides of the tape. In addition, these different techniques used on both sides can interfere with each other, which require more time and resources. Many studies attempt to reveal latent prints on adhesive tapes. One study proposed a Rhodamine 6G / Tween 20 staining solution that simultaneously revealed latent impressions on both sides of an adhesive tape after fumigation with cyanoacrylate [Maldonado et al, 2013]. In this work, we have tested, compared and evaluated this method for detection of fresh and old latent prints on six (06) types with different colors of adhesive tapes. This method gives results comparable to standard treatment methods (Sticky-Side Powder, Crystallized Violet and TapeGlo), while requiring less time, steps and materials.
Keywords
SSP Sticky-Side Powder, VC Violet cristallisé, TG TapeGlo, Rh 6G Rhodamine 6G.
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