Identity Cards Bill

Will the Minister consider the matter further and write to me on it? I appreciate that it may be sensible to say that if somebody cannot satisfy the requirement for all the biometric data—10 fingerprints, an iris scan and a facial scan—it may be appropriate for just one of those specific identifiers to be required of him. I seek assurance that the Government will not in future specify other types of biometric identifiers. I cannot see what else could be designated as a biometric identifier that could later be added. I was seeking that kind of assurance; that there is nothing hiding in the wings. The answer the Minister has given us is to a different question from the one I posed. I certainly accept that what he has said so far contains a lot of sense, but I am looking into the future at what else could be lurking. I do not know whether the noble Lord wants to give a quick reflection on that now or whether he would prefer to write to me on it. I look to him.