Brodie Clark gave evidence today to the Home Affairs Committee. According to the Guardian's live coverage:
For 10 years the Home Office have been investing public money unwisely in projects which depend for their success on mass consumer biometrics technology being reliable – it isn't.
Clark says there are nine checks. The fingerprint check is the most recent, and the least reliable. It was a lower-level check. Lifting that check was a "sensible" thing do to.