Schizophrenia is one of the most common psychoses of undetermined etiology and varia-ble symptoms. The estimated life-long risk of schizophrenia is 1–1.5%. The disease af-fects people all around the world – regardless of their geographical and cultural origin. Due to the specificity of clinical manifestation, schizophrenia is traditionally classified into simple, catatonic, hebephrenic, paranoid, residual and not otherwise specified (NOS). The common element in the psychopathology of all schizophrenic psychoses is personality disintigration (splitting of mental functions) and the longterm course of disease and disadaptation. Delusions and hallucinations which contribute to reality malformation, symptomatize the splitting of mental functions and constitute the underlying cause of crime and cases of law violation. Types of offences and crime committed by persons suffering from schizophrenia typically include verbal aggression, damage to possession, homicide and serious bodily injury as a result of battery. The purpose of present paper was to provide an outline of the effect of schizophrenia on handwriting as well as an answer to a question whether the research conducted so far has successfully confirmed the links between some specific graphism abnormalities and schizophrenia. The published papers on graphology and forensic document examination were the main source of information, whereas the pathology of handwriting typically attributed to schizophrenia was the main research focus.