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

Mhairi Munro, Paul Deacon, Kevin J. Farrugia

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)
    231 Downloads (Pure)

    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.
    Original languageEnglish
    Pages (from-to)185-191
    Number of pages7
    JournalScience & Justice
    Volume54
    Issue number3
    DOIs
    Publication statusPublished - May 2014

    Fingerprint Dive into the research topics of 'A preliminary investigation into the use of alginates for the lifting and enhancement of fingermarks in blood'. Together they form a unique fingerprint.

    Cite this