My paper deals with the provision of psychotherapy services for forensic patients and the training available to the would-be forensic psychotherapist. Psychotherapy in the context of this paper refers to psycho-analytically based psychotherapy, either individual or group, and not to behavioural or cognitive models. In addition, two aspects of psychotherapy should be borne in mind: supportive psychotherapy in the context of ongoing therapeutic relationships (e.g. patients suffering from chronic mental illness) and mutative psychotherapy, which aims to change some aspect of the person. Both aspects are important in the practice of forensic psychiatry, perhaps especially the latter.