We work in partnership with the Canada Border Services Agency, which is in charge of coordinating all the checks our officers refer to it.
Initially, the Citizenship and Immigration Canada officers on the ground decide whether we can approve an application in a specific region of the country or whether the application needs to be referred to CBSA, so that the agency can conduct additional checks and get the Royal Canadian Mounted Police involved. CBSA coordinates all the information provided by officers in charge of security and issues a recommendation to the visa officer on the ground.
I don't know whether Mr. Orr wants to add anything.