Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6553240 | Forensic Science International: Genetics | 2018 | 17 Pages |
Abstract
Experiments depositing human touch DNA on duplicate substrates (traps, rabbit baits and corvid carcasses) set for 0, 1, 2, 4, 7 and 10â¯days outside were carried out, with DNA recovery and profiling following standard operating procedures for Scottish Police Authority Forensic Services. Weather conditions varied among experiments, including some heavy rainfall. Results demonstrated that it was possible to obtain reportable DNA profiles from all substrates after at least 1â¯day outside. Most promisingly, the traps showed no drop-off in DNA persistence over the experiments as complete DNA profiles were obtained after the full 10â¯days outside. A further experiment using 4 bird of prey carcasses confirmed that it is possible to obtain reportable human DNA profiles from them after 1â¯day outside (nâ¯=â¯2 reportable profiles). These results show that touch DNA can persist in an outdoor environment, and provide a tantalising avenue for inquiry in bird of prey persecution investigations.
Related Topics
Life Sciences
Biochemistry, Genetics and Molecular Biology
Genetics
Authors
K. Mcleish, S. Ferguson, C. Gannicliffe, S. Campbell, P.I.T. Thomson, L.M.I. Webster,