Epidemiological studies in the general population confirm the indisputable link between criminological dangerousness and mental disorders especially anti-social personality, which increase clearly the prevalence of violent behavior.

To dress socio-demographic, clinical and medico-legal profile of offenders, with anti-social personality, in forensic psychiatric examination.

It was a retrospective study of a series of 195 patients with antisocial personality (DSM-IV). They were examined, during the period, from 2009 to 2013, on the occasion of a penal expertise in the department of psychiatry C in the Hedi Chaker university hospital, Sfax, Tunisia.

The mean age of patients at the offense moment, was 29.58 years, with a sex ratio of 26.85. Among them, 66.2% were single, 49.2% had a primary school level and 41% had no profession. Between the patients, 58.5% lived in urban area and 38.5% in a high crime area. Addictive behaviors were reported in 80% of cases. Self-injury behaviors were noted in 33.8% of offenders. Psychiatric histories were reported in 66.2%, and 25.6% of patients have been already hospitalized in psychiatry department. 64.1% had already committed forensic acts, and 36% had been imprisoned at least once. The current offense was: homicide 16.9%; sexual offense 9.2%; violence 18.5%; theft 30.2%. The offense was related to impulsivity (40%) or utilitarian purpose (39%).

A young single man with no profession, a limited educational attainment and a history of impulsive behaviors, such is the profile most frequently encountered among offenders with anti-social personality. Interventions for reducing forensic behavior should focus on those social and clinical characteristics.

The authors have not supplied their declaration of competing interest.