Oxidation Monitoring by Fluorescence Spectroscopy Reveals the Age of Fingermarks

• DOI: 10.1002/anie.201402740
• Publication Date: 2014-05-21T19:56:41Z
• Authors: Annemieke van Dam; Janina C. V. Schwarz; Judith de Vos; Maria Siebes; Titia Sijen; Ton G. van Leeuwen; Maurice C. G. Aal...; Saskia A. G. Lamb...
• Keywords: 03 medical and health sciences; Spectrometry, Fluorescence; 0302 clinical medicine; Age Factors; Dermatoglyphics; 16. Peace & justice; Oxidation-Reduction

Abstract No forensic method exists that can reliably estimate the age of fingermarks found at a crime scene. Information on time passed since fingermark deposition is desired as it be used to distinguish between related and unrelated support or refute statements made by donors. We introduce non‐contact fingermarks. Fingermarks were approached protein–lipid mixtures an age‐estimation model was build based expected protein lipid oxidation reactions. Two measures are required from its age: 1) relative amount fluorescent products 2) rate which these formed. Fluorescence spectroscopy obtain measures. tested 44 able 55 % male fingermarks, up three weeks old with uncertainty 1.9 days.