Madam Chair, I will turn it over to my colleagues who have more in-depth knowledge of the system.
The point you raise is an interesting one, in the sense that there can be clear and well-defined rules for simple cases, but in administering the system, we have to understand that life is not always simple and that things can crop up that can make the situation more awkward. We have to try to have as much sensitivity and flexibility as possible and get the information we need in a way that's most reasonable for the taxpayer and the recipient of the benefit.
Perhaps my colleagues can talk a little bit more about how that process works and what kinds of flexibilities we have.