Webthis chapter provides a snapshot of the most common methods and approaches to drug screening and confirmation, and some of the more recent. Webthe journal provides a focal point for the detection of illicit and controversial substances, covering sports doping, recreational drugs, pharmaceuticals, toxicologic pathology,. Webpresenting new developments in sampling and drug profiling, this book also provides practical information on how to carry out analysis, what the results mean. Webbased on the goal of analysis, doa testing may target a limited number of drugs/drug classes, usually classic doa, or more comprehensively encompass a large.