Andrea Pinna, Sofia Rocca, Stefania Porcu, Roberto Cardia, Daniele Chiriu, Carlo M Carbonaro, Riccardo Corpino, Enrica Tuveri, Pietro Coli, Pier Carlo Ricci
Fluorescent lighting and optical techniques have been widely utilized to enhance the detection of latent fingerprints. However, the development of new techniques is imperative to expand the range of surfaces from which latent fingerprints can be detected. When relying on traditional methods, fingerprint evidence can remain undetected or even disregarded due to insufficient detection and limited detail, especially when dealing with a luminescent background. In this study, we propose the utilization of optically stimulated luminescence (OSL) applied to a Ba2 SiO4 matrix, co-doped with Eu2+ and Dy3+ , as a powerful method for visualizing latent fingerprints on various surfaces, including thin plastic bags, rigid duct tape, thin aluminum foil, and glass slices...
December 2023: Heliyon