WATCH: The espionage charge is what's key, says terror chiefpublished at 15:21 British Summer Time 8 September 2023
As we reported earlier, the UK's independent reviewer of terrorism laws has questioned why Daniel Khalife - a terror and espionage suspect - wasn't being held in a higher security prison.
Jonathan Hall KC told BBC Radio 4 that since Khalife had been "charged with collecting information which might be useful to an enemy" he "ought to be held more securely".
You can hear his remarks in full here: