 A crackdown – albeit not quite as disregarding of civil liberties as General Aldo De Marco initially requested – did indeed follow, and during the mid-1960s, 1,995 suspected Mafiosi were arrested and charged with hundreds of crimes.It took many trials to process the accused, including three major ones.The first trial opened in 1967 and concentrated on the growing involvement of the Sicilian Mafia in the international heroin trade.