Discussing illegal drugs without taking into account its criminal context is a difficult proposition. Certain questions come back repeatedly: Does doing drugs really lead to delinquency? Do some drugs have criminal properties? Why would a drug addict turn to crime? What are the best methods of intervention in dealing with individuals who have serious drug habits?

The third edition of <i>Drogue et criminalité : Une relation complexe</i> (Les Presses de l’Université de Montréal), translated here for the first time in English, presents an overview of the complex relationship between drugs and crime, avoids cursory affirmations to the effect that psychoactive substance use necessarily leads to crime. It also sheds light on the political and legislative contexts tied to drugs and offers an exceptional synthesis of the research literature of the past 20 years. The authors also discuss the increased attention to illegal drug users and people with addictions, and describe the different supports that are available to them.