"Former prison governor Ian Acheson said the decision where to put Robinson would be a 'real headache' for the prison service.

'You have someone who would not be considered an escape risk, hasn't been convicted for a crime of violence and has been found guilty of breaking a civil restriction, so normally he could be put in open conditions,' he said.

'But open prisons are very unsupervised and that could leave Robinson at risk of being attacked.

'There is also a risk of his presence disrupting the good order of the prison due to the presence of people who might sympathise with him - particularly as the far-right push the narrative of the rioters being ''political prisoners''.' "