I cannot speak about income tax fraud. I think CRA would be a better place to determine the techniques to identify that. But clearly for us, we put the dormant flag because when people are leaving the country—most of the time it's because they are not in the country or they could be active in a war zone—there's an issue of not knowing where they are any more. There's always increased risk as time passes that if that person wants to reactivate the SIN, it could be misused. and because of that, it's one of the things we implement. We begin to put what we call a dormant flag. It's a flag which is on the SIR to indicate that.... In that case, we require that the individual who wants to reuse their social insurance number come to the office to reactivate their social insurance number. That will give us additional assurance that it is the right person who wants to reactivate their SIN. It's to ensure that the right person receives the right benefit.
On April 1st, 2014. See this statement in context.