Introduction. The association between substance use and aggression derives from the fact that among violent crime offenders there is a large number of people with alcohol and drug abuse. The objective of the study was to determine the incidence of psychoactive substance addicts in the population of violent crime offenders, as well as to consider possible measures to reduce the crime rates in this population. Material and Methods. Forensic psychiatric reports were used to assess 94 violent offenders from 2001 to 2018. The expert reports were obtained from the Psychiatry Clinic in Novi Sad, Serbia, including court case files, medical records, and psychiatric and psychological records of all offenders. Results. We have found that of the total of 94 violent crime offenders, as many as 25% suffered from some form of mental disorder. More than half of those with mental disorders from this group suffered from disorders induced by psychoactive substances, which means that as many as 15% of all offenders had some form of addiction. On the other hand, as much as 50% of all the offenders were under the influence of psychoactive substances at the time of the offense, predominantly by alcohol. Conclusion. Further research is needed in order to develop specific programs for the prevention of violence in the population using psychoactive substances.

The present study tested the possibility of distinguishing between different types of antisocial adolescents based on psychopathic characteristics, and the differences between antisocial adolescents of different ages and subtypes in relation to the Cloninger's personality dimension. The sample included 101 antisocial male adolescents, divided into two age groups (71 respondents in the 13-17 age group and 30 in the 18-25 age group). After conducting model-based cluster analyses, non-psychopathic type (without pronounced signs of psychopathy) and psychopathic type (with pronounced antisocial, lifestyle and interpersonal facet) (Hare’s model) were singled out in the whole sample. Within the psychopathic type, in comparison with juveniles, older adolescents showed a significantly lower expression of character dimensions of Self-directedness and Cooperativeness, which are key in determining all personality disorders. Within the group of juvenile offenders, members of the two subtypes did not differ significantly in temperament and character, which indicates that juveniles are in the process of personality development, especially when it comes to their character, so they are more susceptible to treatment and their outcomes are uncertain. The results suggest that the inflation of psychopathic scores may occur in juveniles due to the identification of developmental features of adolescence (impulsivity, immaturity) as psychopathic, which implies the need to apply basic personality models in the assessment of antisocial adolescent.