I'm totally in favour of biometrics. As you mentioned, I am aware of the biometric mechanisms where we take a person's fingerprints and a live picture of that person. In my view, that will definitely help in protecting our security system.
If a person comes here multiple times, for example, and we have that same person's information already in our system, if that person tries to enter Canada again by some other way—changing his or her identification or something—then definitely biometrics will help in checking for that kind of person.