IMO if you give them places they can go legaly then they wont be a problem. Instead of the police moving them on from place to place, why not give them a designated car park they can use without threat of being moved on and just keep an eye on them. Any causing trouble will be arrested for anti social behavior etc.
who in their right mind wants that anywhere near them? a local business offered a group of bikers the use of their carpark, "low key" meet, "well organised, responsible", etc etc, 200odd bikers later, and the the freshly laid and painted car park looked like daytona, and when they left, a land fill site.....no more permission....
and even at proper designated events, for those who remember back far enough, when the ace started doing "max" nights, turned very quickly into a total nightmare....so much so, that the majority of events had to have a police presence, the unfortunate thing is, despite the best efforts to provide a suitable venue, and facilities, a significant percentage of those turning up will be pillocks, as witnessed by the stolen cars and bikes pulled allsorts along the north circ, cars broken into, and sickening crashes, not to mention teh disorder that went with it.
everyone says "it's not me, it's that lot", but at the end of the day, the residents who have a right to quality of life, don't want it on their doorstep, there are plenty of event throughout the year at locations like airfields, santa pod, etc to cater for it.