The Supreme Court of Canada will hear appeals from both parties in the terrorism case of Algerian refugee Mohamed Harkat.
Mr. Harkat, 44, was arrested almost 10 years ago in Ottawa on suspicion of being an al-Qaeda sleeper agent, but he denies any involvement in terrorist activities.
The federal government wants to deport Mr. Harkat under a national security certificate, a rarely used tool for removing non-citizens suspected of being terrorists or spies.
In April, the Federal Court of Appeal upheld the constitutionality of the security certificate system, but ruled that summaries of some mid-1990s conversations be excluded from evidence against Mr. Harkat because the Canadian Security Intelligence Service destroyed the original recordings.
The ruling left both sides unhappy and each asked for a hearing in the Supreme Court — an uncommon turn of events.
As usual, the high court gave no reasons for its decision to hear the appeals.