Terrorism Prevention and Investigation Measures Bill

If I may, I will pursue the point raised by the hon. Lady. Will the Minister tell us why he thinks that the number of convictions in this country is so low? In the 10 years or so since 9/11 there have been about 230 convictions relating to terrorism offences, which is less than 10% of the number in the United States during the same period, and similar comparisons can be drawn with other countries. Why does this country have such a low conviction rate compared with everybody else?