Research about delinquency and its risc factors in patients with bipolar disorders is primarily referred to forensic populations or based on criminal record data of clinical populations. Thus, this thesis analyzes delinquency and its potential risc factors of a clinical population based on clinical chart reports of criminal activity (dark field). Delinquency was detected in 37 % of the patients. There was an accumulation of delinquency in manic and mixed episodes in contrast to depressive episodes. The simultaneous appearance of illusion and hallucination, acute alcohol intoxication, a base vocational training, an absent partnership as well as a grave course of disease was also associated with a higher rate of delinquency. All in all, examination of a clinical population with inclusion of the dark side showed higher delinquency rates of patients with bipolar disorders and other risc factors than showed so far. Results should lead to an increased research about delinquency in populations of patients with bipolar disorders.