Those are very good questions.
You need integrity in the process all the way through. In one project we're working on right now.... The first thing to do is make sure that when you're issuing that secure document, you actually have real, authentic breeder documents. For example, is the driver's licence that is being provided an authentic driver's licence or not? There's quite a lot in the way of security features on that driver's licence. They can be easily authenticated—or not. If you're using a passport as a breeder document, you can authenticate the breeder document as a passport.
So if you take care to make sure first of all that the person can clearly say that he is who he is, and then you capture the biometrics so that you link those biometrics to that identity, then you've made a big step. Then, when that document is presented and the biometrics are authenticated at the border, we can tell whether that's the person or not.
We're helping to solve the problem of false documents and we're also helping to solve the problem of someone using someone else's document.