The investigation into the circumstances of the recent disturbance at Harmondsworth Immigration Removal Centre is being carried out by Mr. Robert Whalley CB, a retired senior civil servant. The investigation will establish the lessons to be learnt from this event for the management of the immigration detainees and of the immigration detention estate. It will take full account of the separate police inquiries that are continuing and will be conducted in a way which does not impede any criminal prosecution. Subject to ensuring that any possible criminal prosecutions are not prejudiced, I will arrange for the outcome of the investigation to be available to the House.