CBSA is responsible for managing removals and deportations. It is very challenging for the agency to know where all failed claimants are who aren't in detention. People are often released on terms and conditions. Many are not, but some individuals fail to report to the agency with a change of address, or they decide to try to cross the border into the United States, or they decide to go home. One of the gaps that we currently have and are moving to fill is an exit information system, which is one of the initiatives that will be forthcoming under the perimeter strategy with the United States. This will allow the agency to know whether individuals have left the country voluntarily or not. It will help them to narrow their search in determining where those individuals may be, if we know they haven't left the country.
On April 30th, 2012. See this statement in context.