Chemical enhancement of footwear impressions in urine on fabric

Kevin J. Farrugia; Helen Bandey; Stephen Bleay; Niamh NicDaéid

doi:10.1016/j.forsciint.2011.07.020

Chemical enhancement of footwear impressions in urine on fabric

Kevin J. Farrugia, Helen Bandey, Stephen Bleay, Niamh NicDaéid

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Abstract

A range of chemical techniques were utilised for the enhancement of footwear impressions deposited on a variety of fabric types of different colours with urine as a contaminant. A semi-automated stamping device was used to deliver test impressions at a set force to minimise the variability between impressions; multiple impressions were produced and enhanced by each reagent to determine the repeatability of the enhancement. Urine samples from different donors were analysed using a spectrofluorophotometer revealing differences between individuals. Results indicated that the enhancement of footwear impressions in urine was possible using amino acid staining techniques whereas protein stains failed to achieve successful enhancement.

Original language	English
Pages (from-to)	67-81
Number of pages	15
Journal	Forensic Science International
Volume	214
Issue number	1
DOIs	https://doi.org/10.1016/j.forsciint.2011.07.020
Publication status	Published - Jan 2012
Externally published	Yes

Keywords

Footwear impressions
Urine
Fabric
Enhancement
Ninhydrin
DFO
DMAC
1,2-Indanedione

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10.1016/j.forsciint.2011.07.020

FarrugiaFSIAuthor2011Accepted author manuscript, 1.11 MB

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title = "Chemical enhancement of footwear impressions in urine on fabric",

abstract = "A range of chemical techniques were utilised for the enhancement of footwear impressions deposited on a variety of fabric types of different colours with urine as a contaminant. A semi-automated stamping device was used to deliver test impressions at a set force to minimise the variability between impressions; multiple impressions were produced and enhanced by each reagent to determine the repeatability of the enhancement. Urine samples from different donors were analysed using a spectrofluorophotometer revealing differences between individuals. Results indicated that the enhancement of footwear impressions in urine was possible using amino acid staining techniques whereas protein stains failed to achieve successful enhancement.",

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N2 - A range of chemical techniques were utilised for the enhancement of footwear impressions deposited on a variety of fabric types of different colours with urine as a contaminant. A semi-automated stamping device was used to deliver test impressions at a set force to minimise the variability between impressions; multiple impressions were produced and enhanced by each reagent to determine the repeatability of the enhancement. Urine samples from different donors were analysed using a spectrofluorophotometer revealing differences between individuals. Results indicated that the enhancement of footwear impressions in urine was possible using amino acid staining techniques whereas protein stains failed to achieve successful enhancement.

AB - A range of chemical techniques were utilised for the enhancement of footwear impressions deposited on a variety of fabric types of different colours with urine as a contaminant. A semi-automated stamping device was used to deliver test impressions at a set force to minimise the variability between impressions; multiple impressions were produced and enhanced by each reagent to determine the repeatability of the enhancement. Urine samples from different donors were analysed using a spectrofluorophotometer revealing differences between individuals. Results indicated that the enhancement of footwear impressions in urine was possible using amino acid staining techniques whereas protein stains failed to achieve successful enhancement.

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DO - 10.1016/j.forsciint.2011.07.020

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JO - Forensic Science International

JF - Forensic Science International

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Chemical enhancement of footwear impressions in urine on fabric

Abstract

Keywords

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