Journal of Forensic
Identification Volume:58 Issue:1 Dated:January/February
2008 Pages:54 to 82
This study confirms that latent marks are capable of
withstanding exposure temperatures about 100 C for several hours and
identifiable marks have been recovered from a range of substrates placed in
realistic fire scenes. Sequential treatment processes can be proposed for both
soot removal and fingerprint development on articles affected by fire. Arson is
one of the most expensive crimes in terms of material cost. When examining the
scene for fingerprints, there is a misconception that fingerprints are destroyed
by the intense heat and black soot deposits arising during a fire and the effect
of extinguishing media. Until recently, there has been little published
information on the recovery of fingerprints from arson scenes. Building on
previous research discussed, this first in a two-part study examined the range
of temperatures and exposure times that latent marks could survive exposure to
heat and the effectiveness of existing development processes in developing
heat-affected marks, how these conditions were modified by the addition of soot,
and the best practice for soot removal.
https://www.ncjrs.gov/App/publications/Abstract.aspx?id=243223
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