Permabanned
Just do what they do in Southern Ireland. Make trespass a criminal offence.
Police officers in Ireland may order suspected trespassers to move on. More than 250 of Ireland's 7,000 travelling families have been moved on under Section 24 of the Act, with many opting to move to Britain to avoid the tough laws. Irish officers may also impound "objects" that have been brought on to the land. These may be sold by the police if left unclaimed.
This indeed is the reason we see so many of these people in England, Scotland and wales in the summer, they are no longer able to occupy private or council land for long periods in southern Ireland so come across here. A great vote winner would surely be there for the taking for a party who pledged Draconian trespass actions to be brought to the statute book to address these long suffered issues?