Terrorism Prevention and Investigation Measures Bill

I am grateful to the hon. Gentleman. I know that he does not have much time. These are obviously incredibly difficult issues for anybody to determine. What would he do with the handful of people for whom prosecution is not an effective route—because of the need to safeguard intelligence—and who cannot be deported or taken through the criminal justice system, but who pose a significant threat to the safety of the decent, law-abiding people in our country?