The concept of violence is widely spread and interpreted in various ways in different scientific disciplines. In the legal field, it is observed as the use of physical force that injures another person's bodily integrity, restricts their freedom of movement or limits their freedom to make decisions about their actions. Therefore, if an offender uses force during the commission of a criminal act resulting in injuries that meet the legal definition of violence, then the offender is committing a crime with elements of violence. This work focuses on juvenile offenders involved in such criminal acts. With the development of early legal systems, indications of juvenile criminal law emerged, establishing a specific status for young offenders compared to adults. Alongside the historical development of responses to violent juvenile behavior, this work also explores the legal system's reactions to newer forms of violence, such as online violence. Each sanction is individualized for the juvenile offender to best achieve the purpose of sanctioning. This indicates the uniqueness of each case, as evidenced by examples from the case law of the Županijski sud u Varaždinu. The work analyzes five judgments and decisions from the case law of the mentioned court, with a special focus on the modalities of committing criminal acts and the characteristics of juvenile offenders that the court considered relevant when deciding on sanctions. In addition to the court's practice, statistical data are analyzed as one of the best indicators of the direction of violent juvenile crime trends in the Republic of Croatia, which show a decrease in the number of convicted juvenile offenders in recent years, a high proportion of violent criminal acts in juvenile crime, and an increase in the number of convicted juveniles for the most serious criminal acts, crimes against life and the body.