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Near Infrared (IR) Laser Dyes for Latent Fingermark Detection

Funding: 2009: $15,000
2010: $39,000
2011: $38,500
2012: $14,500

Project Member(s): Roux, C., McDonagh, A.

Funding or Partner Organisation: Australian Research Council (ARC Linkage Projects)
Australian Federal Police

Start year: 2009

Summary: Human fingermarks are still a core evidence for policing because they allow the direct identification of individuals. However, currently not all surfaces are amenable to mark recovery because they interfere with the fingerprinting technique. Through our research, we will exploit the fact that many materials do not fluoresce under near-IR light, but certain laser dyes do. We will modify laser dyes for fingermark recovery on a range of surfaces. Outcomes: 1) Develop laser dyes as a cyanoacrylate stain for use on non-porous surfaces. 2) Develop dye-nanoparticle powders for use on non-porous surfaces. 3) Modify dyes to develop a wet powdering technique for use on adhesive or wet surfaces 4) Develop dyes for use on porous surfaces.'',


Chadwick, S, Maynard, P, Kirkbride, P, Lennard, C, McDonagh, A, Spindler, X & Roux, C 2012, 'Styryl dye coated metal oxide powders for the detection of latent fingermarks on non-porous surfaces', FORENSIC SCIENCE INTERNATIONAL, vol. 219, no. 1-3, pp. 208-214.
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Chadwick, S, Maynard, P, Kirkbride, P, Lennard, C, Spindler, X & Roux, C 2011, 'Use of Styryl 11 and STaR 11 for the Luminescence Enhancement of Cyanoacrylate-Developed Fingermarks in the Visible and Near-Infrared Regions', JOURNAL OF FORENSIC SCIENCES, vol. 56, no. 6, pp. 1505-1513.
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Keywords: latent fingermarks, luminescent dyes, near infrared, nanotechnology, law enforcement, fingerprints,

FOR Codes: Analytical Chemistry, Justice and the Law not elsewhere classified, Criminology, Nanotechnology