ISSN: 0022-1198
CODEN: JFSCA
Page Count: 5

DNA-PCR Analysis of Bloodstains Sampled by the Polyvinyl-Alcohol Method
Schyma, C
Laboratory of Experimental Ballistics,

Bonte, W
Institute of Forensic Medicine, Heinrich-Heine-University,

Huckenbeck, W
Institute of Forensic Medicine, Heinrich-Heine-University,

(Received 2 February 1998; accepted 16 June 1998)

Abstract

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.

Keywords:
forensic science, PVAL, polyvinyl alcohol, gunshot residues, DNR-PCR typing, individualization

Paper ID: JFS14417J
DOI: 10.1520/JFS14417J
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