I actually don't know what would happen. I just can't think of a reason why or how that would even happen here. A random field isn't going to have electrical or water hookups, they would have none of the necessities. There's just no culture for it here. I guess if I owned the field I would definitely call the police. The closest thing is maybe random big parties that happen sometimes in the summer. People will gather in a big group and make a big bonfire. A lot of times they get left alone but if they are loud or disruptive the police definitely get involved. I just have no frame of reference for gypsies specifically.
We do have a "caravan" culture, though. We call them "campers" or RVs. It's a common vacation thing, every state has campgrounds you can take your camper too and park it kind of like a hotel. It's cheaper than flying somewhere for vacation. My parents actually own one and use it in the summers. But again, totally different from the gypsy type of thing.
As for the pedo community, I'd never heard of it. Just looked it up and I think that one is literally the only one in the country. There is an island off the coast of Washington state that used to house a federal prison and now holds a detention facility for violent sex offenders. There's a really, really interesting video about that place if you're interested, a guy kayaks to the island and breaks in and explores the abandoned buildings - https://www.youtube.com/wat...I1hZdltw