On the day that the mass eviction starts on Dale Farm, Britain's largest traveller site, Dispatches reporter Deborah Davies investigates the controversial relations between gypsies and travellers, their neighbours and the law. Across Britain furious residents complain about the way gypsies and travellers pitch camp illegally in local parks, the damage they cause and the mess they leave behind. They also accuse gypsies of underhand tactics to win planning permission on green belt land where housing development wouldn't normally be allowed. Travelling families complain they're constantly moved on by police and bailiffs. They say many council sites are badly maintained and in locations where no one else would want to live. The gypsies and travellers also claim they're refused permission to develop their own sites because of prejudice. The programme asks whether the government's proposed crackdown on unauthorised development will make things better or worse.