The request for information on bank accounts and other financial accounts and on banking and other financial operations has to be submitted by the Judicial Authority (the Public Prosecutor, during the investigations, and the Judge, during the trial phase).
Moreover, the Judicial Authority may proceed with the seizure from banks of documents, securities, values, sums deposited in accounts and anything else, even if contained in safety deposit boxes, when it has justified reasons to believe that they are pertinent to the crime, much as they do not belong to the accused or are not registered under his name.