Yes, you are correct. We do not believe you need legislative authority for the NSIRA to receive classified information from a foreign intelligence agency should that agency want to give the NSIRA that information. Normally the NSIRA would get it directly from any of the Canadian departments and agencies. They have full access to it. Anything the agencies have, other than cabinet confidences, the NSIRA can get.
On April 17th, 2018. See this statement in context.