Einsatz der Cyanacrylat-Bedampfungspistole Hussa zur Visualisierung daktyloskopischer und humanbiologischer Spuren am Tatort – Eine Validierungsstudie

Anslinger, K.; Bayer, B.; Bauer, U. und Marxreiter, M. (2021): Einsatz der Cyanacrylat-Bedampfungspistole Hussa zur Visualisierung daktyloskopischer und humanbiologischer Spuren am Tatort – Eine Validierungsstudie. In: Rechtsmedizin, Bd. 32, Nr. 3: S. 172-178

Abstract

Background and objective For almost 2 years, the Hussa mobile cyanoacrylate steam gun has been used in field trials to visualize latent dactyloscopic traces directly at the crime scene but does this treatment affect subsequent molecular genetic analysis? This question is to be answered in the context of a validation study. Material and methods For this purpose, 10 fingerprints from each of 9 volunteers were treated with cyanoacrylate using Hussa or one of the adhesive methods frequently used at crime scenes and examined in comparison to the same samples in an untreated state. The results of the DNA analysis were evaluated quantitatively (amount of extracted DNA per trace) and qualitatively (completeness of the obtained STR (Short Tandem Repeat) profiles) as well as with respect to the susceptibility of the method to contamination. Results and conclusion A comparison of the results revealed no significant differences concerning the amount of DNA obtained or the quality of the observed profiles. The use of specially manufactured filters provides effective protection against contamination. Regarding subsequent DNA analysis, the use of the Hussa pistol is a suitable alternative to the dactyloscopic methods currently used at a crime scene.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 0937-9819
• Sprache: Deutsch