I'm surprised because all these people have to come with visas, and to get their visas they have to give all sorts of information to Immigration Canada's offices and to foreign offices in Canadian high commissions abroad. So if 1% of these visitors fail to be identified properly, maybe the problem doesn't lie with the question of biodata—maybe it does. But it seems as though there might be an issue somewhere else and they might try to cover that shortcoming through biodata information. I'm not sure about the context of your question, but that would be my response.
On March 8th, 2012. See this statement in context.