Journal Published Online: 01 July 2003
Volume 48, Issue 4

Systematic Study on STR Profiling on Blood and Saliva Traces after Visualization of Fingerprint Marks

CODEN: JFSCAS

Abstract

This paper describes a systematic study of the influence of optical, physical, and chemical methods used for fingerprint enhancement on subsequent DNA analysis of biological stains. Latent fingerprints as well as fingerprints in contact with blood and saliva on different surfaces were treated with dactyloscopic methods. As a general finding, subsequent STR profiling of the blood/saliva traces led to good results after all the enhancement methods included in this study. Concerning blood enhancement procedures, the airbrush technique showed deleterious effects on subsequent STR analysis in some cases. We therefore recommend the implementation of the layer technique, as it brings advantages for fingerprint enhancement as well. It could also be shown that, as can be necessary in practical casework, two enhancement methods can be performed on a single stain without having influence on STR profiling. In terms of methodological variety, this paper reflects a comprehensive study performed on STR profiling after fingerprint enhancement methods, including rare methods and variations of techniques, which can be a useful alternative in certain case scenarios.

Author Information

Grubwieser, P
Institute of Legal Medicine, Innsbruck, Austria
Thaler, A
Institute of Legal Medicine, Innsbruck, Austria
Silvano, K
Institute of Legal Medicine, Innsbruck, Austria
Teissl, R
Landesgendarmeriekommano für Tirol, Innrain, Innsbruck, Austria
Rabl, W
Institute of Legal Medicine, Innsbruck, Austria
Parson, W
Institute of Legal Medicine, Innsbruck, Austria
Pages: 9
Price: $25.00
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Details
Stock #: JFS2002243
ISSN: 0022-1198
DOI: 10.1520/JFS2002243