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J Forensic Sci. 1999 Jan;44(1):95-9.

DNA-PCR analysis of bloodstains sampled by the polyvinyl-alcohol method.

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  • 1Laboratory of Experimental Ballistics, Hürth, Germany.


Among the usual techniques of sampling gunshot residues (GSR), the polyvinyl-alcohol method (PVAL) includes the advantage of embedding all particles, foreign bodies and stains on the surface of the shooter's hand in exact and reproducible topographic localization. The aim of the present study on ten persons killed by firearms was to check the possibility of DNA-PCR typing of blood traces embedded in the PVAL gloves in a second step following GSR analysis. The results of these examinations verify that the PVAL technique does not include factors that inhibit successful PCR typing. Thus the PVAL method can be recommended as a combination technique to secure and preserve inorganic and biological traces at the same time.

[PubMed - indexed for MEDLINE]
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