The Camorra criminal trials, held in Naples, involved more than a thousand people charged with belonging to a criminal organisation, the Nuova Camorra Organizzata (NCO). In the winter of 1982-3 the NCO suffered the desertion of some of its key men who, once arrested, broke the code of silence (omert?), turned against their former associates, and collaborated with the Justice Department. In the initial set of trials their testimony was found sufficiently...