Chemical enhancement of soil-based marks on nonporous surfaces followed by gelatin lifting

Simple item page
dc.cclicenceCC-BY-NCen
dc.contributor.authorHammell, Louise
dc.contributor.authorDeacon, Paul
dc.contributor.authorFarrugia, Kevin J.
dc.date.accessioned2019-09-19T10:31:34Z
dc.date.available2019-09-19T10:31:34Z
dc.date.issued2014-11
dc.descriptionThe author's final peer reviewed version can be found by following the URI link.en
dc.description.abstractThis study assessed the use of processing techniques (potassium thiocyanate, 2-2-dipyridil, potassium ferrocyanide, ammonium pyrrolidinedithiocarbamate, safranin, magnetic powder) for the enhancement of soil-based marks on nonporous surfaces, followed by gelatin lifting for the recovery of these marks. Other variables in the study included the use of nonporous substrates with varying colors (ceramic tiles, glass, linoleum, plastic bags, leaflets) and different aging periods (1, 7, 14, and 28 days) prior to enhancement and gelatin lifting. A numerical grading system from -1 (deterioration) to 4 (recovery of all fine detail) was adopted to assess the quality of the enhancement achieved. In this study, the two most effective chemical enhancement techniques for soil-based marks on nonporous surfaces were safranin and potassium thiocyanate, specifically on grey linoleum and white ceramic tiles. One-day aging of soil-based marks provided poor results, whereas 28-day aging periods provided superior enhancement. In general, lifting with gelatin lifts provided further improvement on the initial enhancement, by means of contrast and sharpness. However, the use of gelatin lifting sometimes resulted in the deterioration of the original mark. Marks treated with safranin and lifted with white gelatin lifts provided even further improvement through fluorescence examination.en
dc.exception.reasonavailable at Abertay Uni repositoryen
dc.exception.ref2021codes254aen
dc.funderNo external funderen
dc.identifier.citationHammell, L., Deacon, P. and Farrugia, K. J. (2014) Chemical enhancement of soil-based marks on nonporous surfaces followed by gelatin lifting. Journal of Forensic Identification, 64(6), pp. 583-608.en
dc.identifier.urihttps://rke.abertay.ac.uk/en/publications/chemical-enhancement-of-soil-based-marks-on-nonporous-surfaces-fo
dc.identifier.urihttps://dora.dmu.ac.uk/handle/2086/18462
dc.language.isoenen
dc.peerreviewedYesen
dc.publisherJournal of Forensic Identificationen
dc.titleChemical enhancement of soil-based marks on nonporous surfaces followed by gelatin liftingen
dc.typeArticleen

Files

License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
4.2 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Leicester School of Pharmacy