Chemical enhancement of footwear impressions in blood deposited on fabric — Evaluating the use of alginate casting materials followed by chemical enhancement |
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| Authors: | Kevin J. Farrugia, Niamh NicDa id, Kathleen A. Savage,Helen Bandey |
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| Affiliation: | a Centre for Forensic Science, WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XW, UK;b Home Office Scientific Development Branch, Fingerprint & Footwear Forensic Group, Woodcock Hill, Sandridge, St. Albans, AL4 9HQ, UK |
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| Abstract: | Most footwear marks made in blood on a surface such as fabric tend to be enhanced in situ rather than physically recovered using a lifting technique prior to enhancement. This work reports on the use of an alginate material to recover the impressed footwear marks made in blood and deposited on a range of fabric types and colours. The lifted marks were then enhanced using acid black 1 and leuco crystal violet with excellent results.This presents a new method for the lifting and recovery of blood impressions in situ from crime scene followed by subsequent mark enhancement of the lifted impression. |
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| Keywords: | Footwear impressions Blood Fabric Amino acid Alginate |
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