Detectability and medico-legal value of the gunshot residues in the intracorporeal channel

Journal of Forensic and Legal Medicine
Arnaldo Stanislao MiglioriniRiccardo Zoja

Abstract

The application of the histochemical stain of sodium rhodizonate to the entrance wound for the detection of the lead (Pb) residues coming from the gunshot may be affected by false positive cases due to the contamination of the environmental Pb. The aim of the Authors is to histochemically search the Pb of GSR in a region which should be more protected by the contamination: the intracorporeal channel. Two hundreds and eighteen serial histological specimens of the intracorporeal channels coming from 25 subjects (dead due to gunshots and being autopsied at the Section of Legal Medicine of the Milan University, in the years 2013-2014) were stained with the sodium rhodizonate and sodium rhodizonate in acid environment (HCl 5%), and then observed by the microscope. The sodium rhodizonate showed a positivity for the Pb residues in the intracorporeal channel, with the detection of the particles within the first 2 cm beyond the entrance wound in 6 cases over the total number of 25 (24%). Victims were characterized by common features: short-barreled weapon; contact shots or short-distance shots; involvement of regions that were not covered by clothing; preservation of the microscopic structure of organs interested by the intracorporeal c...Continue Reading

References

Jan 1, 1983·Histochemistry·A J Chaplin, E L Turner
Jul 29, 1999·Forensic Science International : Synergy·H BrownS Cordner
Apr 2, 2002·International Journal of Legal Medicine·W MartyD Wyler
Nov 30, 2006·Biotechnic & Histochemistry : Official Publication of the Biological Stain Commission·R ZojaG Gentile
Apr 14, 2010·Journal of Forensic Sciences·Oliver DalbyJason W Birkett
May 31, 2011·Forensic Science International : Synergy·Sébastien CharlesNadia Geusens
Apr 5, 2012·Journal of Forensic Sciences·Anna TaborelliCristina Cattaneo
Jul 1, 2014·BioMed Research International·Regina Verena TaudteClaude Roux

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