Detection of AP-237 and synthetic cannabinoids on an infused letter sent to a German prisoner Posted on August 18, 2022August 19, 2022 By sdargoltz Arianna Giorgetti, Pietro Brunetti, Susi Pelotti, Volker Auwärter Drug Test Anal; 2022 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, Seized Drugs/Controlled Substances, Toxicology