Case histories are reported of two male patients, both in their forties, each of whom had an earlier criminal period in his life, one as a cardsharper and the other as a blackmailer. Treatment was sought for both several years after the the cessation of the delinquent behavior, because of ensuing symptoms. It was possible to carry out with them the classical analytical technique, and their analyses provided the author with opportunities to investigate the psychodynamics of their delinquent behavior, as well as the interchange of neurotic and delinquent symptoms.

Severe oral conflicts, caused in one patient by extreme overindulgence and