Mr. Paul Lambert:

There is an issue sometimes of over-reach because we can gather data or link so many different types of data and data sets. There is an inclination sometimes to say, "Oh, we can do it so let us do it", but we also need to look at the purpose. Are we linking or gathering more data than we need to deal with whatever is the concern or purpose? There is a balance, therefore, to be achieved. For all of the individualised concerns that are being raised, an individualised balancing exercise needs to be gone through as well. Sometimes we may need data for something but once we have established, say, whatever the voting registration number is, it may be easy then to delete particular data that we have because we no longer need it going forward. We need to consider PPS numbers, no PPS numbers and in between. Part of that in between is if we use PPS numbers to achieve a particular purpose, do we need to retain them going forward? Depending on the particular purpose or activity, we may not. They are parts of the nuances of the exercise that we need to delve a little deeper into during ongoing processes and discussions, as would a commission. The issue are nuanced but they are important as well. If they were not important, we would not have-----