[On the relationship between incestuousness and destructivity: some reflection from an expert case.]

Introduction: Incestuous behaviors are often placed in family constellations that are highly dysfunctional from the perspective of communication between members and also with regard to the roles and expectations held in the family. The expert case being presented reflects these characteristics.

Methods: Beginning with an expert case of particular interest with respect to incestuousness and destructibility, the authors report considerations from a clinical criminological and forensic psychological-psychiatric point of view on the link between the two item.

Conclusions: A careful historical, anthropological, documentary reconstruction, the examination of the relational set-up of the various subjects involved, and not only the clinical and psychodiagnostic aspects, are the indispensable premises, in order to make overall sense of crimes in families of particular complexity, difficult to decipher, such as those exposed in the present scientific work.