This perennial bestseller examines criminalistics, pathology, pharmacokinetics, neurochemistry, and treatment, as well as drugs and drug testing in the workplace and in sports, along with the ethical, legal, and practical issues involved. New topics include genetic testing in drug death investigation, the neurochemistry of nicotine and designer amphetamines, genetic doping in sports, and the implications of the Daubert ruling on the admissibility of scientific evidence in court. Addressing specific problems in drug-related medical emergencies and the physical, neurochemical, and sociological phenomenon of addiction, this book is indispensable for anyone in the legal, medical, or treatment fields