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Forensic fingerprint-age estimation is currently impossible. Knowledge on time passed since fingerprint deposition is desired as it can distinguish between crime-related and unrelated fingerprints and support or refute statements made by fingerprint donors. In their Communication on page 6272 ff., S. A. G. Lambrechts and co-workers describe a successful fluorescence-based method to estimate fingerprint age that relies on the protein–lipid oxidation rate and the subsequent generation of fluorescent oxidation products.
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Dam et al. (2014) studied this question.
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