If the person had signed the Official Secrets Act slip, he or she cannot reply on any question which had been deem confidental by his department. he can only answer them or allow others to know of the information if that set of information had been declassified.
had the officer actually reply on the question, he would then be in trouble for breaching the Official Secrets Act.
Chee, as an ASP(NS) knows that, but he is just playing to the gallery and fooling those who r ignorant of the Official Secrets Act and at the same time, trying to get a IO in trouble.