The advisory council on national security was shut down during the summer — just two years into the three-year terms of its latest members.
The council was established in 2005 by the Liberal government of the day to provide confidential views on security issues in the post-9-11 era.
A Privy Council Office spokesman said it is now routine for federal security departments and agencies to contact outside experts through other means.
The advisory council had a budget of about $30,000 a year to cover travel and other hospitality-related costs associated with meetings.
University of Toronto historian Wesley Wark, who served on the council from 2005 to 2009, says he regrets the shutdown as there is still a complex security environment and a need for high-level, independent advice.
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