As of 2010, there were nearly 4,700 people living under the witness protection program in Italy after testifying against organized crime in the country. Around 1,000 of these witnesses were “collaborators,” or people who were previously associated with the Mafia before turning state’s evidence. The rest of the people are family members of the collaborators.
The programs costs the Italian Government over $129 Million (100 Million Euros) to operate each year.
Source: Associated Press, “Italy’s secret weapon in hobbling Sicilian Mafia: witness protection program,” Washington Post, October 14, 2012.