Performance of Hair Testing for Cocaine Use—Comparison of Five Laboratories Using Blind Reference Specimens Posted on November 8, 2022November 10, 2022 By sdargoltz E Dale Hart, Svante Vikingsson, Ruth E Winecker, Amy L Evans, Edward J Cone, John M Mitchell, Eugene D Hayes, Ronald R Flegel J Anal Tox; 2022 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