Yeah, that's one of the major problems at the moment - because there's no legal mechanism for this kind of service to exist, then the council and police need to pretty much agree that people using the service won't be picked up under reasonable suspicion and that it won't be affect the festival licence. It operated like that at Boomtown etc for a few years, and it worked well but unfortunately was stopped in 2019 - I don't think the specifics as to what happened ever got made pubic, but the