Thermal development of latent fingermarks on porous surfaces - Further observations and refinements

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Show simple item record Song, Di Fei en_US Sommerville, Daniel en_US Brown, Adam en_US Shimmon, Ronald en_US Reedy, Brian en_US Tahtouh, Mark en_US
dc.contributor.editor en_US 2012-02-02T05:37:37Z 2012-02-02T05:37:37Z 2011 en_US
dc.identifier 2010000436 en_US
dc.identifier.citation Song Di Fei et al. 2011, 'Thermal development of latent fingermarks on porous surfaces - Further observations and refinements', Elsevier Inc, vol. 204, no. 1-3, pp. 97-110. en_US
dc.identifier.issn 0379-0738 en_US
dc.identifier.other C1 en_US
dc.description.abstract In a further study of the thermal development of fingermarks on paper and similar surfaces, it is demonstrated that direct contact heating of the substrate using coated or ceramic surfaces at temperatures in excess of 230 8C produces results superior to those obtained using hot air. Fingermarks can also be developed in this way on other cellulose-based substrates such as wood and cotton fabric, though ridge detail is difficult to obtain in the latter case. Fluorescence spectroscopy indicates that the phenomena observed during the thermal development of fingermarks can be reproduced simply by heating untreated white copy paper or filter paper, or these papers treated with solutions of sodium chloride or alanine. There is no evidence to suggest that the observed fluorescence of fingermarks heated on paper is due to a reaction of fingermark constituents on or with the paper. Instead, we maintain that the ridge contrast observed first as fluorescence, and later as brown charring, is simply an acceleration of the thermal degradation of the paper. Thermal degradation of cellulose, amajor constituent of paper and wood, is known to give rise to a fluorescent product if sufficient oxygen is available [1?5]. However, the absence of atmospheric oxygen has only a slight effect on the thermal development of fingermarks, indicating that there is sufficient oxygen already present in paper to allow the formation of the fluorescent and charred products. In a depletion study comparing thermal development of fingermarks on paper with development using ninhydrin, the thermal technique was found to be as sensitive as ninhydrin for six out of seven donors. en_US
dc.language en_US
dc.publisher Elsevier Inc en_US
dc.relation.hasversion Accepted manuscript version en_US
dc.relation.isbasedon en_US
dc.rights NOTICE: This is the author’s version of a work that was accepted for publication by Elsevier. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published by Elsevier. en_US
dc.title Thermal development of latent fingermarks on porous surfaces - Further observations and refinements en_US
dc.parent Forensic Science International en_US
dc.journal.volume 204 en_US
dc.journal.number 1-3 en_US
dc.publocation Clare, Ireland en_US
dc.identifier.startpage 97 en_US
dc.identifier.endpage 110 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 039902 en_US
dc.personcode 0000043168 en_US
dc.personcode 10037253 en_US
dc.personcode 0000030832 en_US
dc.personcode 980366 en_US
dc.personcode 000263 en_US
dc.personcode 040570 en_US
dc.percentage 100 en_US Forensic Chemistry en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Forensic science, Fingerprints, Fingermarks, Thermal development, Fluorescence, Charring en_US
dc.staffid 040570 en_US

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