Advertisement Lawyers acting for Bernard Collaery will next week challenge a court order requiring large parts of his trial to be held in secret as the long-running case continues into his alleged efforts to expose a secret Australian operation to bug East Timorâs government. The ACT Court of Appeal will hold a two-day hearing on Monday and Tuesday into an order made under national security laws to hold the trial largely behind closed doors. Lawyer Bernard Collaery and Witness K allegedly revealed Australia bugged East Timorâs cabinet during tense oil and gas negotiations. Credit:Alex Ellinghausen Mr Collaery, the former lawyer for an ex-spy known as Witness K, is challenging an order made by the ACT Supreme Court last year to accept former attorney-general Christian Porterâs application to invoke the National Security Information Act, which governs how courts should handle sensitive information. The NSI Act requires the court to give âgreatest weightâ to the Attorney-Generalâs views about the national security implications of a case, which has resulted in large portions of the hearings being held in secret.