A major terrorism trial is set to be heard in secret for the first time in England, the Court of Appeal has been told.
The court heard that the Crown Prosecution Service had "sought and obtained an unprecedented order" to ensure the trial of two defendants accused of serious terror offences should take place completely in private.
To try defendants in terrorism trial in secret and anonymously as being proposed would be unprecedented, first time in a court.
The move would see the identity of both defendants withheld, while media would be banned from reporting what takes place during the hearing.
Media organisations had launched a challenge to the order, on which a ruling is expected to be given in a few days.