Drug courts provide offenders with intensive court supervision, mandatory drug testing, substance-abuse treatment and various other social services as an alternative to adjudication or incarceration. In this way, drug courts are designed to break the cycle of substance abuse, addiction, and crime by changing the behaviour of substance-abuse offenders. This book is an overview of drug courts and related federal grant programs which are widely considered an important strategy for reducing incarceration, providing drug treatment and reducing drug use and recidivism among non-violent offenders.