Canada

In his written representation, Abdelrazik's lawyer Paul Champ argues the witnesses are "very experienced dealing with highly confidential matters" and calls the suggestion that they might blurt out classified information "speculative at best."

"The open court principle is especially important in this case because it involves allegations of malfeasance and complicity in serious human rights abuses by senior government officials," he writes.

"There is a strong public interest in the public hearing government witnesses defend their actions in this case."

CBC News is seeking to intervene in the case, arguing the Crown's motion "would unjustifiably limit the open court principle and infringe upon the freedoms of expression and of the press."