It's precisely what would happen if I left the country for more than five years, I came back, and I applied for some kind of federal benefit. There would be a dormant flag on my file because I didn't file with CRA or have any contact with Canada at all in that time. When I came back, I'd have to prove that I was me. I would have to go through the same validation process at that time for a dormant flag at Service Canada.
On April 17th, 2007. See this statement in context.