1. Introduction
Previous studies found that there is a small but significant relation between psychosis and aggressive behavior. There are several factors that can explain this relation including decreased mentalizing abilities . Cognitive dysfunctions, and personality pathology. In a recent review, Lamsma and Harte (2015) described the complex interrelation between these different factors, but also conclude that the exact relation between these factors and aggression in schizo-phrenia is still not clearly understood. In this paper we focus on particular psychopathological risk factors that are found to play an important role. Firstly, psychotic symptoms of the schizophrenia disorder can play a role. Taylor (1985) found that offenses were motivated in 90% of offenses. Delusions, especially persecutory delusions, seem to account for most of the (violent) offending of persons with a psychotic disorder Secondly,