The Left-Hand 2D:4D Ratio is Superior to the Right-Hand 2D:4D Ratio in Determining the Criminal Potential of Schizophrenia Patients

The left 2D:4D ratio in a schizophrenia patients with criminal history was a significantly lower compared with those without. Therefore, in individuals with schizophrenia, the left 2D:4D ratio may serve as an early predictor of criminal behavior. This non-invasive anatomical measurement may have the potential to help forensic investigators identify those who are more likely to commit crimes, hence improving public safety.