Assessing Polysubstance Overdoses – An Expanded Biosurveillance Strategy for Public Health Practice Posted on November 9, 2023November 9, 2023 By Jeff Teitelbaum APHL Overdose Biosurveillance Task Force Association of Public Health Laboratories; 2023 Access report Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Forensic Pathology and Medicolegal Death Investigation, Seized Drugs/Controlled Substances, Toxicology