Performance of Hair Testing for Cocaine Use—Comparison of Five Laboratories Using Blind Reference Specimens Posted on October 13, 2023 By Jeff Teitelbaum E. Dale Hart, Svante Vikingsson, Ruth E. Winecker, Amy L. Evans, Edward J. Cone, John M. Mitchell, Eugene D. Hayes, Ronald R. FlegelJournal of Analytical Toxicology; 47(2); 2023 Access article Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Forensic Pathology and Medicolegal Death Investigation, Seized Drugs/Controlled Substances, Sexual Assault / SANE, Toxicology