MacDonell 1971 / Bevel-Gardner: classification of bloodstain patterns (passive / projected / impact / transfer); back-calculation to area-of-origin via 3D triangulation; controversial reliability per 2009 NAS report.
MacDonell 1971 / Bevel-Gardner: classification of bloodstain patterns (passive / projected / impact / transfer); back-calculation to area-of-origin via 3D triangulation; controversial reliability per 2009 NAS report.