The hon. Gentleman mentions an argument that we often hear-"If you're innocent, you've nothing to fear." One thing that people have to fear, however, is the number of mistakes on the DNA database. In 2007, the Home Office released figures showing that there were more than 500,000 faults or wrongly recorded names on the database. Furthermore, as I said earlier, as the database gets bigger, the issue of errors will become more important.