NDLI: A comparison of the use of vacuum metal deposition versus cyanoacrylate fuming for visualisation of fingermarks and grab impressions on fabrics.

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A comparison of the use of vacuum metal deposition versus cyanoacrylate fuming for visualisation of fingermarks and grab impressions on fabrics.

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A comparison of the use of vacuum metal deposition versus cyanoacrylate fuming for visualisation of fingermarks and grab impressions on fabrics.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Fraser, Joanna Deacon, Paul Bleay, Stephen Bremner, David H.
Description	Author Affiliation: Fraser J ( School of Science, Engineering and Technology, Abertay University, 40 Bell Street, Dundee DD1 1HG, UK. Electronic address: j.fraser@abertay.ac.uk.); Deacon P ( Forensic Services, Scottish Police Services Authority, Rushton Court, 3 West Victoria Dock Rd, DD1 3JT, UK. Electronic address: paul.deacon@spsa.pnn.police.uk.); Bleay S ( HOSDB, Woodcock Hill, Sandridge, HERTS AL4 9HQ, UK. Electronic address: Stephen.Bleay@homeoffice.gsi.gov.uk.); Bremner DH ( School of Science, Engineering and Technology, Abertay University, 40 Bell Street, Dundee DD1 1HG, UK. Electronic address: d.bremner@abertay.ac.uk.)
Abstract	Both vacuum metal deposition (VMD) and cyanoacrylate fuming (CAF) are techniques used to visualise latent fingermarks on smooth non-porous surfaces such as plastic and glass. VMD was initially investigated in the 1970s as to its effectiveness for visualising prints on fabrics, but was abandoned when radioactive sulphur dioxide was found to be more effective. However, interest in VMD was resurrected in the 1990s when CAF was also used routinely. We now report on studies to determine whether VMD or CAF is the more effective technique for the detection of marks on fabrics. Four different fabrics, nylon, polyester, polycotton and cotton, were utilised during this study, along with 15 donors who ranged in their age and ability to leave fingermarks, from good to medium to poor, thus reflecting the general population. Once samples were collected they were kept for a determined time (1, 2, 3, 4, 5, 6, 7, 14, 21 or 28 days) and then treated using either the gold and zinc metal VMD process or standard cyanoacrylate fuming. The smoother fabrics, such as nylon, consistently produced greater ridge detail whereas duller fabrics, like cotton tended only to show empty prints and impressions of where the fabric had been touched, rather than any ridge details. The majority of fabrics did however allow the development of touch marks that could be targeted for DNA taping which potentially could lead to a DNA profile. Of the two techniques VMD was around 5 times more effective than CAF, producing a greater amount of ridge detail, palmar flexion creases and target areas on more samples and fabrics.
File Format	HTM / HTML
ISSN	13550306
Issue Number	2
Volume Number	54
e-ISSN	18764452
Journal	Science & Justice
Language	English
Publisher	Elsevier
Publisher Date	2014-03-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Jurisprudence Discipline Forensic Sciences Cyanoacrylates Dermatoglyphics Volatilization Cotton Fiber Humans Nylons Polyesters Vacuum Comparative Study Journal Article
Content Type	Text
Resource Type	Article
Subject	Pathology and Forensic Medicine

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A comparison of the use of vacuum metal deposition versus cyanoacrylate fuming for visualisation of fingermarks and grab impressions on fabrics.

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