This text is ideal for all students and law enforcement officers studying the subject of drugs and drug use in today's society. The book presents historical references, reveals integral data that traces drug use and activity in numerous categories, analyzes the forces that drive the industry, and provides detailed information that will aid officials in identifying illegal activity. The reader can become knowledgeable about illicit drugs in various ways: from learning the chemical composition to recognizing behaviors effected by use to discovering the street slang. In addition to the updated material centering on drug legislation and investigations, the 3rd edition also features a new chapter entitled 'Chemical Control and Drug Diversion,' which focuses on current domestic and international efforts and strategies to combat chemical production and distribution. Other chapters included are Current Patterns of Drug Use; Drug/Crime/Violence Connections; Drug Addiction and Behavior; Central Nervous System Depressants; Alcohol; Heroin Influence; Designer Drugs; Anabolic Steroids; Cannabis (Marijuana); Volatile Inhalants and Poisonous Substances; Drug Treatment and Rehabilitation; and more.