Pensions Bill

I accept that point, but unless one is clear about the rules for residency that one is going to apply, how can one know what data one is going to collect? That is why one needs to understand the system that one is suggesting could be introduced. Until one does that, one simply collects every piece of information in the world. One might want to use it at some stage in the future, but in any event the electoral register is not a test of residency.