Chemical enhancement of footwear impressions in blood recovered from cotton using alginate casts
Jurgens, Eline and Hainey, Ainsley and Shaw, Lynsey and Andries, Jan (2015) Chemical enhancement of footwear impressions in blood recovered from cotton using alginate casts. Journal of Forensic Identification, 65 (3). pp. 247-272. ISSN 0895-173X
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Abstract
Depletion series of footwear impressions in blood were deposited on black cotton fabric after which they were lifted using alginate and subsequently enhanced using protein stains amido black (AB), Crowle’s stain (CS), coomassie blue (CB), and Hungarian red (HR). Other factors that were considered during this study were the age of the impression and the temperature of the environment. A novel score system for the enhancement of footwear impressions was introduced, which used the product of scores for size and detail of the impression. The study showed that temperatures between 8 °C and 37 °C did not impact chemical enhancement, whereas the age of the impression did. An impression aged for 7 days yielded higher enhancement scores than impressions aged for 1 or 28 days, especially for AB. The results of depletions 1 to 5 were similar to the results of only depletion 5. However, at depletion 5, AB was the best-performing protein stain. CB and AB yielded the highest level of enhancement of the impressions, whereas CS and HR resulted in poorer quality enhancements. AB was the preferred protein stain of use because AB was the most sensitive protein stain used in this study and there were fewer health risks involved in using water-based AB than in using methanol-based CB.
ORCID iDs
Jurgens, Eline, Hainey, Ainsley, Shaw, Lynsey ORCID: https://orcid.org/0000-0002-7734-6371 and Andries, Jan;-
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Item type: Article ID code: 53479 Dates: DateEvent2015Published29 December 2014AcceptedSubjects: Medicine > Public aspects of medicine > Forensic Medicine. Medical jurisprudence. Legal medicine
Science > ChemistryDepartment: Faculty of Science > Pure and Applied Chemistry Depositing user: Pure Administrator Date deposited: 25 Jun 2015 13:22 Last modified: 04 Dec 2024 01:15 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/53479