Journal
FORENSIC SCIENCE INTERNATIONAL
Volume 210, Issue 1-3, Pages 52-62Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.forsciint.2011.01.034
Keywords
Forensic sciences; Questioned documents; Ink dating; Solvent drying; Aging; Method validation; Interpretation
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Several ink dating methods based on solvents analysis using gas chromatography/mass spectrometry (GC/MS) were proposed in the last decades. These methods follow the drying of solvents from ballpoint pen inks on paper and seem very promising. However, several questions arose over the last few years among questioned documents examiners regarding the transparency and reproducibility of the proposed techniques. These questions should be carefully studied for accurate and ethical application of this methodology in casework. Inspired by a real investigation involving ink dating, the present paper discusses this particular issue throughout four main topics: aging processes, dating methods, validation procedures and data interpretation. This work presents a wide picture of the ink dating field, warns about potential shortcomings and also proposes some solutions to avoid reporting errors in court. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
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