As it stands it can take weeks to evict groups of 'travellers' from land they have no right to occupy. They seem able to pitch up on village greens, car parks and fields, where necessary moving boulders or breaking locks. Since trespass is a civil offence rather than a criminal offence the landowner or local authority then has to go through all the necessary legal processes and timescales before the travellers are forced to move. The locals are then forced to pay for the clean-up operation.
My proposal is simply to remove some of the restrictions that make it difficult for the authorities to enforce the laws that others have to abide by and to reduce the timescales needed to move these groups on. Hopefully if they know they will only be allowed to stay for 24 hours they might be encouraged to use legitimate sites.