WebApr 11, 2024 · This review presents an overview on the application of latent fingerprint development techniques in forensic sciences. At present, traditional developing methods such as powder dusting, cyanoacrylate fuming, chemical method, and small particle reagent method, have all been gradually compromised given their emerging drawbacks such as … WebBecause single color small particle reagents are limited to certain surfaces, we developed a series of different color small particle reagents to develop fingerprints on various colored …
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WebDec 1, 2015 · Small particle reagent (SPR) is a widely used method for developing latent fingerprints on non-porous wet surfaces. SPR based on zinc carbonate hydroxide … WebAug 30, 2024 · In the Small Particle Reagent (SPR) process, the very small black particles, Molybdenum Disulfide (MoS 2), adhere to the fatty substances left in latent print residue. … cst to aedt
Small Particle Reagent Technique of Fingerprint Development - SlideSh…
WebOct 2, 2024 · Small particle reagent. Excellent clarity of the developed fingermarks was obtained using small particle reagent for fingermarks on metal substrates buried in shorter periods. However, the quality of developed fingermarks degraded as a function of burial duration (Fig. 8). Water speckles were also encountered on the developed fingermarks … WebMy thesis project in PG Diploma Forensic Science is "Fingerprint Development on Bakelite Surface using Small Particle Reagent". This involved the preparation of the Dye of Small particle reagent and use this dye for developing prints on the immersed bakelite surface in water for different time duration. This uses the principle of sweat ... WebSep 4, 2024 · The latent fingerprint may be found on items which have been accidentally or deliberately wetted. One of the most effective application techniques for developing latent prints on wet non-porous surfaces is small particle reagent (SPR). SPR based on zinc carbonate and mixed with natural dyes (curcumin and anthocyanin) and commercial … cst to airport distance