Di Pietro came under investigation himself in 1997 for his activities both in the police and as a judge. It was later found that the main prosecutor handling Di Pietro's case, Fabio Salamone from Brescia, was the brother of a man that Di Pietro himself had prosecuted, and who had been sentenced to 18 months of jail for various corruption charges. Although it took some time for the authorities to realize this, Salamone was eventually allocated other duties and, after years of trials, Di Pietro was eventually cleared of all charges.