Born in Briosco, in the province of Milan in 1946, he became a magistrate in 1974. From then, until 2005 he conducted or collaborated with famous investigations such as the discovery of the P2 Masonic lodge, the murder of the lawyer Giorgio Ambrosoli, the so-called “Fondi Neri IRI”, the “Mani Pulite” scandal, and the Imi-Sir. Lodo Mondadori and Sme trials. In 2005 he began working as a judge at the Court of Cassation. As a magistrate, he took part as a speaker in lots of Italian and international conferences on issues such as corruption, illegal funding of political parties, accounting fraud, money laundering and international judicial cooperation.
In 2007 he left the judiciary and since then, with the association “Sulle regole”, he has focused on the public reflection of justice and education regarding legality. Every year he meets about 50,000 students, and as a result was awarded the “Cultura della Pace 2008” prize. HE is the president of Garzanti Libri and part of the committee for the reform of the prison system. He is the President of the Cassa delle Ammende and of UECoop.
His most recent books include: La tua giustizia non è la mia [Your Justice isn’t Mine], (with Piercamillo Davigo, published by Longanesi), Il legno storto della giustizia [The Crooked Wood of Justice] (con Gustavo Zagrebelsky, Garzanti), and La bambina tutta verde [The Green Girl] (Salani).