Starting from the amplitude of the domestic and social violence phenomenon, we wanted to conduct a study of the psychological profile of the aggressors in the penitentiary environment, examining the personality characteristics and the aggressive behaviour from the perspective of the educational practices of the family of origin, in male and female prisoners, custodiated in two penitentiaries in Romania. All these represent the general objective. In order to achieve the major objective of the research we have outlined the specific objectives of the research: - to characterize the sample of prisoners in terms of the level of aggression and emotional distress. - to identify clusters of personality disorders present in prisoners; - to highlight the weight of the different wrong educational practices in the families of origin of the prisoners and their specific association with various personality disorders. - to highlight differences between male and female prisoners in terms of aggression, emotional distress and parental practices. - to highlight a series of associations between the criminological variables (recidivism, duration of punishment, delay in punishment, etc.), presence of personality disorders and aggressive behaviour in prisoners. The research was carried out on two groups of subjects, one consisting of men deprived of liberty, men who carry out the sentence in a maximum security penitentiary and a group made up of women in detention who execute a sentence deprived of liberty in a prison with diversified detention regimes. In terms of age, the subjects are between 22-59 years old. As findings we mention that, a part of the research hypotheses was confirmed and that there was a partial antagonism between the groups of prisoners which led to the sustainability of the general objective.