A preliminary investigation into the use of alginates for the lifting and enhancement of fingermarks in blood

Date

2013-12-19

Advisors

Journal Title

Journal ISSN

ISSN

Volume Title

Publisher

Elsevier

Type

Article

Peer reviewed

Yes

Abstract

Recent studies have reported the use of alginate in the lifting and subsequent enhancement of footwear marks in blood. A study was set up to assess the use of such a method in the treatment of fingermarks in blood on a variety of porous, non-porous and semi-porous surfaces. Other variables included ageing of the fingermarks in blood and the application of chemicals prior to or post-alginate lifting. All different variations were compared to direct chemical treatment of the substrate. The results demonstrated that alginate is not compatible with certain substrates (e.g. glass and tile). On substrates that were compatible with alginate (e.g. fabric and paper), the enhanced fingermarks on the alginate cast and the enhanced fingermarks on the post-alginate substrates appeared, overall, inferior compared to direct chemical enhancement without the use of alginate. A further variation using water-based protein stains directly mixed with the alginate appeared to provide enhancement directly on the substrate as well as simultaneous lifting and enhancing the fingermarks in blood on the alginate cast.

Description

The author's final peer reviewed version can be found by following the URI link. The Publisher's final version can be found by following the DOI link.

Keywords

Citation

Munro, M., Deacon, P. and Farrugia, K. J. (2014) A preliminary investigation into the use of alginates for the lifting and enhancement of fingermarks in blood. Science & Justice, 54(3), pp. 185-191.

Rights

Research Institute