DNA profiling of bloodstains on linen pretreated with remedies used for cleaning and maintaining clothes

摘要

Linen was pretreated with 20 remedies for cleaning and maintaining clothes and 20 μl blood was applied on each sample and dried. Restriction enzyme digest of bloodstain DNA was irregularly inhibited by highly concentrated residues of 2 detergents and a stainremover and colour-brightener. An additional dialysis step to purify DNA (Gill 1987) reliably prevented disturbance. High molecular DNA was obtained in every case and bandshifts were not observed