[A symptom oriented approach to evaluate legal capacity under account of the term will].

After summarising the legal requirements of contractual capacity, an attempt is made to define the term will with psychiatric conceptualisations. Possible restrictions of a free declaration of will are outlined. Symptoms, which possibly influence cognitive preconditions of will and personal values, are taken into account. Our considerations are supposed to improve orientation in this complex field and to contribute to the communication between psychiatric expert and the court. However, the analysis of each individual case remains essential.