Book excerpt: Covering a wide range of research currently being done in drug analysis, Drug Testing Technology: Assessment of Field Applications compares and evaluates various methods used to determine abused drugs taken by individuals, and their application in various programs and contexts. Controversies associated with various methods, including urine analysis and hair analysis, are examined. Contributors from a wide diversity of disciplines offer advanced knowledge, encompassing work which is technical as well as markedly philosophical. Chapters provide overviews of drug incorporation into hair; the use of hair analysis for compliance measurement in the use of anti-epileptic medications; and the application of drug testing to the psychiatric treatment of substance abuse disorders. Drug Testing Technology: Assessment of Field Applications provides information useful in medical applications, workplace testing, criminal justice monitoring community epidemiology, and drug treatment assessment.