Welfare Reform Bill (Programme) (No. 2)

If the right hon. Gentleman will forgive me, I will try to catch Mr Speaker's eye in a moment to answer questions, but for now, perhaps the hon. Gentleman can answer one for me. As different schools today use different systems—some use fingerprinting, some use an electronic card system and some still use cash—does he envisage his proposal requiring schools up and down the country to scrap their current systems and have a new, harmonised system? If so, has he calculated what the cost of that system would be and how long it would take to introduce?