Berlusconi tried to bribe voters with cash letters promises.
Berlusconi ahead of parliamentary elections on Feb. 24 to 25, he decided to resort to questionable methods of public relations.
To potential voters, he sent letters to financial promises in exchange for votes in the elections.
Opponents of Berlusconi consider this an attempt to give bribe and appealed to Prosecutor's Office, reports La Repubblica.
The letters bear the stamp of Berlusconi "People of Freedom" signed by Berlusconi.
Promises to decrease and return of municipal property taxes that Mario Monti made to pay.
There back in two ways: by bank transfer on personal account or cash, Reuters reported.
Pier Luigi Bersani, leader of the Democratic Party, leading in opinion polls, described the situation as a fraud and called Berlusconi tricks according to the BBC.