Germanshepherdsmum
The legislation does not cover adequately a situation such as this. SB has not undertaken terrorist activities in the UK as far as we know, and the difficulty in obtaining satisfactory evidence of what she did abroad is obvious. Relevant sensitive information does have to be disclosed but that happens in camera, not in open court, and requires the use of special counsel.
Of course it does but you have said she will be walking the streets, As I pointed out she could be held and any activity monitored and a case brought against her for any activity in the UK. Should she be active, which is doubtful.