The UK terrorism watchdog has said there are dangers to releasing possible dangerous terrorists onto the streets after two years.
But David Anderson QC said it allows focus regarding what to do with them.
He was speaking to the Home Affairs Committee, which is hearing evidence on the terror prevention measures Tpims.
It comes after fugitive terror suspect Mohammed Ahmed Mohamed escaped surveillance last month by dressing in a burqa.
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ITV Border Political Editor Peter MacMahon says it's far too early to call this referendum.
A World War Two veteran has told ITV News he has fulfilled a boyhood dream by voting for an independent Scotland.
Keep on top of the referendum results as they are announced from 32 counting stations across Scotland.