This book explores all aspects of the drug and alcohol abuse issue, including the impact of drugs on our society; history; pharmacological impacts on drugs on the body; policy implications of drugs; the criminal justice system response; the effects, 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.