A core element of Schema Therapy (ST) is ‘schema modes’ or fluctuating emotional states. ST assumes that particular personality pathology consists of specific combinations of maladaptive schema modes. There is confirmatory evidence for the modes hypothesized to be central to borderline and narcissistic personality disorder (PD) in non-forensic patients. In this study, we tested three aspects of the construct validity of schema modes in cluster-B personality disordered offenders, examining its factorial validity, and the relations among personality disorders and violence risk.