I'll start and perhaps Mr. Desruisseaux can supplement.
We work very closely with our key allies, those in what we call the five country conference: the United States, Australia, the United Kingdom, and New Zealand. Through that process, Australia for the last number of years has been hosting a server to which all the countries provide a limited number of biometrics for verification and cross-checking against each other's submissions.
What we have found is that there have been a number of hits for all countries where we have become aware of individuals who have tried to access one, and in one particular case, all five of the countries using a different identity each and every time. There's one particularly alarming case where I believe someone managed to get into Australia using a false identity, but because biometrics were used they were able to return that individual to the U.K., where I believe he was facing sexual assault charges. It is a tool that we believe will protect Canada and Canadians much more than is the case today with simple biographic information sharing to ensure we know, as you say, that who arrives is the individual who applied.