Mr. Therrien will be able to tell you. He probably encounters that frequently in the course of his investigations.
There is one thing I get frustrated about. As an example, let's say there is an access to information request from the person who submitted that very information, perhaps someone who has applied for refugee status.
He will be asked to supply personal information about his wife and family. However, when he submits an access to information request, all he will receive is the information pertaining to him. The institution is required to redact even personal information about his wife and family, which generates additional work.
I made a recommendation about this to the Department of Justice because it is currently studying amendments to the Privacy Act. In such situations, when the requester is the person who supplied the information, it should be provided without requiring our institutions to do additional work. They have enough access to information work, and there is no reason why we should add to their workload.