Very simply, oftentimes the easiest way to capture this is to compare it to an onion. The security intelligence community has layers, and departments and agencies are central to the core, or they find themselves on the outside. It also includes policy and operations. For example, you have core collectors of intelligence—CSIS, CSEC, and DFAIT for certain types of intelligence—and then you have the Department of National Defence, the Canadian Forces, and the Canada Border Services Agency.
Then you have consumers of intelligence, certain departments that will provide policy advice to their ministers, including Transport Canada, the Public Health Agency of Canada, Health Canada, the Canadian Food Inspection Agency, Agriculture Canada, and Natural Resources Canada.
Then you also have the assessors, who assess the intelligence. There are the Integrated Threat Assessment Centre, the Privy Council Office's Intelligence Assessment Secretariat, the intelligence assessment division. The Canadian Forces has a chief of defence intelligence.
The community is large, but there is a core—and I've listed them—of those who collect and analyze information, and the objective of a member of security intelligence is to advise government. That's the core CSIS mandate. The community is larger the more you go to the outside of the layers of the onion. It easily covers 20 departments and agencies.