Can Italian authorities access Interpol notices that have not been published publicly?

Yes. Italian law enforcement has direct access to Interpol’s restricted I-24/7 database, which contains notices and Diffusions that are not visible on Interpol’s public website. Many Red Notices are marked ‘not for public dissemination’ at the requesting country’s request but remain fully operational for police purposes. This means you can be arrested in Italy based on a notice you have no knowledge of. A Preventive Request to the CCF can reveal whether any non-public alerts exist against you, and if so, initiate challenge proceedings before you encounter Italian border controls.