May I suggest that Mrs Agitator, if not serving, writes to your MP to ask him/her/it to raise the matter with the PM, Swiss Des and whichever half-wit is in charge of education this month?
If the MP is mildly hard of thinking or too busy working out this month's expenses, it may need to be explicit in explaining that the compromising of such data (which could be as simple as a child losing the piece of paper on the way to school) represents a security risk - not just IED related but kidnapping of the child (walk = easy to snatch) and attempted coercion of the serving parent.