Abstract
It was shown that a DC metal sputtering process with thermalised atoms, preferentially deposits metal onto fingerprint ridges. This method can be successfully used for the development of latent fingerprints. Four target metals were tested — copper, zinc, platinum, and gold — with platinum showing superior results for latent fingerprint development on clear polythene substrates. A comparison of platinum sputtering and cyanoacrylate fuming followed by rhodamine-6G staining, was conducted for 1-year-old fingerprint deposits. Platinum sputtering showed significantly higher sensitivity, and produced better overall results.
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