You're right, it's biased.
it is hard to argue with Labour's claim that the Conservative proposal will restrict the police's ability to fight crime
Actually, it's very easy to argue that adding 1m innocent people's profiles to the database has not improved its effectiveness as a crime-fighting tool - because that's exactly what's happened.
See: http://www.genewatch.org/uploads/f03c6d ... Q_A_v3.doc
In the two years since this Genewatch note was written, the number of retained profiles of innocent people has continued to expand, to around 1 million, yet the DNA detection rate still remains stubbornly fixed at 0.37%.