A two-sample approach to retrograde extrapolation of blood THC concentrations – Is it feasible? Posted on November 6, 2023 By Jeff Teitelbaum Peder Olai Skjeflo Holman, Gudrun Høiseth, Liliana Bachs, Cecilie H Thaulow, Merete S Vevelstad, Jørg Mørland, Maren Cecilie Strand Forensic Science International; 2023 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Seized Drugs/Controlled Substances, Toxicology