Well, it will depend on the service that is provided. First of all, if voters simply want to confirm that they are on the list, a name and address will suffice. We might also ask for the postal code. If someone wants to change his personal information—for example, if there has been a recent change of address, which reflects the majority of situations that arise now—we could apply a more stringent mode of authentication.
When we met with Committee members last June, we talked about an approach using the driver's licence number. That is not shared universally and we have it in our files. We could ask a voter, before an address change is made, that he confirm his identity using his driver's licence number.
When we discussed this issue in June, a number of you said that this was asking too much and suggested that we simply use the date of birth—information which we also have in our files. So, a voter could confirm his identity, which would be authenticated through the date of birth.