Sub-Lt. Jeffrey Delisle is charged with communicating information that could harm national interests.
The 41-year-old man was denied bail during his last court appearance in March.
A broad publication ban was also ordered covering evidence presented at the bail hearing.
Delisle has been in custody at the Central Nova Scotia Correctional Facility since his arrest in January.
He was charged under a section of the Security of Information Act that was passed by the House of Commons after the terrorist attacks on the United States on Sept. 11, 2001.
The RCMP say the charges against Delisle mark the first time that anyone has been charged under that section of the act.