The paper deals with aspects of juvenile delinquency with a special focus on narcotics. Delinquency presents a great danger from which the society firmly protects itself through pedagogical and educational as well as corrective means, with the law, police, attorney’s office and juvenile court. The position and the role of the criminal and misdemeanor system in juvenile delinquency is a specific one. Special attention is paid to the suppression of juvenile delinquency, with the specific importance of the criminal and misdemeanor’s sanctions against a juvenile offender. The paper is largely based problem of young people which is manifested in addiction, in this case, drugs. The studies have shown that young people tend to use multiple addictive agents simultaneously and that the frequency of consumption is in a positive interrelation. Most young people, however, only experiment with various means which can cause addiction. In the course of adolescence, this addiction either stops or is being moderately stabilized. In a certain number of youth, the abuse is developing to an extent that it starts to interfere with schooling, family relationships, social life and productivity in general. It is important to point out that it produces an increasing problem of juvenile delinquency, which is then joined by a number of other delinquencies, such as theft, crime and violence. The aim of this paper is to outline the concept of juvenile and adolescent delinquency, legal postures toward drug issues, the stages and consequences of drug use, types of criminal sanctions and their imposition on users, and, finally, felony and misdemeanor provisions in the Republic of Croatia.