at 19 of a terrorist attack plot, stock exchange here, placed under high profile sites to cause damage, foiled, and when jailed at the time, the judge said that khan was a significant threat going forward to the british public and shouldn't be released until such time as he had been assessed individually to see it was plausible to let him out. a year later an appeal was won by khan. that was quashed. a new one was put into place with a fixed term. that's why he was able to come out early having served less than seven years of a 16-year sentence. he was put into rehabltation, that was part of the reason he was here on friday and was wearing an electronic tag. yes, he was known to the intelligence services, it was a matter of public record. and also he was being monitored. hence the reason the most senior