Life in an English prison was "like a spa" says a Polish man who served time for fare dodging and other crimes.
Krzsztoe, who now works for the charity Barka UK helping people from eastern Europe, said he would have thought again about crime if he had to be sent back to a jail in Poland.
The way foreign prison prisoners are dealt with could set the PM on a collision course with his own party. Sunday Politics London examined cases where the Metropolitan Police took action to find 75% were down to the British-born, followed by those from Poland, Romania and Lithuania.
Andrew Cryan also spoke to Open Europe research director Stephen Booking.