Again, in terms of roles and responsibilities, the IRCC is responsible at the stage of the initial application to assess the validity of the documents. That's their role and responsibility. You've heard what they do to combat fraudulent documents.
The particular role we played in this case was doing the inland investigations. Post-arrival, we received the tips and information that led us down an investigative path. That led us to conclude that there were fraudulent documents being used.
That's why I speak about the layers of defence, because you can't rely on a single layer of defence. You have that initial requirement on the students to complete their applications completely and honestly. The second layer of defence is the IRCC reviewing the application itself, and then we come in and, based on the information, may do an investigation.