The basis is the one that we have discussed. The hon. Gentleman has made it clear that he does not agree with our approach. His position is that to have a fingerprint or DNA sample held is in some sense a penalty to an individual in society—somehow a disadvantage in life, a restriction of liberty or whatever. I do not accept that. Building up such databases is an important tool in fighting crime, which helps the other side of the civil liberties argument. I entirely acknowledge the legitimacy of the debate. The hon. Gentleman's position is not ridiculous, but I do not accept where he is coming from.