Problems of Forensic Sciences 2019 Vol. 120 (CXX) 267-277
ENHANCEMENT OF FINGERPRINTS IN DILUTED BLOOD
David PETRETEI
Hungarian University of National Services, Budapest, Hungary
Streszczenie
In this article an experiment is presented on common bloody fingerprint enhancement methods; amido black and Hungarian red were applied on water-diluted blood. Different dilution ratios were studied. Amido black had better results, as fingerprints in 9 : 1 water-blood dilution could be enhanced to show clear level II details, while Hungarian red could only enhance the contours of prints even at a 1 : 1 water-blood dilution ratio. Water dilution of blood – and hence the presence of fingerprints in diluted blood – can occur at crime scenes, and two of the most common enhancement dyes have different limitations when applied to diluted blood.
Słowa kluczowe
Fingerprint; Blood; Blood enhancement; Amido black; Hungarian red.