Abstract：
:We have studied the degradation of sebaceous fingerprints on brass surfaces using silver electroless deposition (SED) as a visualization technique. We have stored fingerprints on brass squares either (i) in a locked dark cupboard or (ii) in glass-filtered natural daylight for periods of 3 h, 24 h, 1 week, 3 weeks, and 6 weeks. We find that fingerprints on brass surfaces degrade much more rapidly when kept in the light than they do under dark conditions with a much higher proportion of high-quality prints found after 3 or 6 weeks of aging when stored in the dark. This process is more marked than for similar fingerprints on black PVC surfaces. Identifiable prints can be achieved on brass surfaces using both SED and cyanoacrylate fuming (CFM). SED is quick and straightforward to perform. CFM is more time-consuming but is versatile and can be applied to a wider range of metal surfaces than SED, for example brass surfaces which have been coated by a lacquer.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Payne IC,McCarthy I,Almond MJ,Baum JV,Bond JWdoi
10.1111/1556-4029.12524subject
Has Abstractpub_date
2014-09-01 00:00:00pages
1368-71issue
5eissn
0022-1198issn
1556-4029journal_volume
59pub_type
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journal_title：Journal of forensic sciences
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journal_title：Journal of forensic sciences
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journal_title：Journal of forensic sciences
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