In this episode, we talk about the analysis of drugs in hair. The use of hair as a preferred sample for drug testing has grown in popularity over the last couple of decades. But so too has our understanding of its limitations. What can hair analysis tell us about a person's drug history? Special thanks to Michaela Kenneally and Marc Grabowski for appearing in this episode. Peter's recommended hair collection device Contact us at toxpod@tiaft.orgFind out more about TIAFT at www.tiaft.orgThe Toxpod is a production of The International Association of Forensic Toxicologists. The opinions expressed by the hosts are their own and do not necessarily reflect the views of TIAFT.