This work explores all aspects of the drug and alcohol abuse issue, including the history and impact of drugs within our society; pharmacological impacts of drugs on the body; policy implications of drugs; the criminal justice system response; the affects, treatment and prevention of abuse; theories of use; drug business; and drug law enforcement. Reports on the latest data on drug concerns provide further examination of alcohol and explore the abuse of additional substances such as inhalants, herbal stimulants, and designer drugs. The major drugs are arranged into depressants, stimulants, hallucinogens, and cannabis.