Italian Prime Minister Silvio Berlusconi has suffered a setback after judges amended a law shielding him from prosecution temporarily. A Constitutional Court, meeting in Rome, ruled that individual judges should be allowed to decide whether a Prime Minister could be tried in office. The 15 judges found that some points of the law passed last year were not consistent with the constitution. Mr Berlusconi is a defendant in three trials which have been suspended. He denies wrongdoing and mocked the constitutional hearing earlier. The court said, in a statement, that the Prime Minister could not automatically invoke a legitimate impediment claim exempting him and cabinet ministers from attending trials in progress because of their official duties.