Vote Leave research calculated if net migration continued at its current pace, the UK’s already over-crowded prison system would need an extra 7,226 places by 2030, including nearly 4,000 just for EU migrants.
Housing the extra European criminals alone would take seven more prisons the size of Yorkshire’s 606-place Full Sutton prison.
It would take more than £400million to create the new places plus another £145million each year to look after them. Express.