The present work aims to describe the Cognitive Interpersonal Psychotherapy (CIP) applied to Sexual Offenders (SO). SOs are often referred to group psychotherapy when they are in prison. Marshall created a specific cognitive psyvhotherapeutic treatment to 1) enhance SOʼs selfesteem, 2) change cognitive distortions, 3) improve the empathy with victims, 4) provide SOs with a better intimacy, 5) change their dysfunctional sexual preferences, 6) prevent crime relapses. A case report will be introduced and discussed to evidence the features of clinical relevance of CIP and its limitations.

Case-report. L., a 65 years-old man convicted with paedophilia. He has been perpetrating sexual offences to a 6 years-old child since 2000 to 2005. L. received a psychotherapeutic treatment based on CIP to solve his sexual obsessions and his trait anxiety.

Diagnosis was gathered using his personal history, several interviews, the Genogram and direct observation.

A sexual hyper arousal was detected in every domain of L.ʼs life. He had an anxious style of attachment. A treatment based on individual sessions (2 a month) was begun. The first goal was an improvement of understanding the consequences of criminal acts using psycho-educational techniques. The second aim was to reduce anxiety to solve his erectile dysfunction of psychic origin working about cognitive distortions. Actually L. is treated also with antidepressant therapies.

Sexual Obsessive worries have been reduced and L.ʼs marital relationship improved, giving L. a better intimacy. Therapeutic goals seem to be partially reached and we can hypothesize a good prognosis.