Red Hill idiots

Well it looks like we may have some future problems at Red Hill due to farkin idiots burning cars dumping rubbish and general un- wanted behaviour. The top car park trailhead has been closed and there are some notices around on the trails regarding endangered species , which could end up being "us".
There has been heaps of kids fanging around on those crappy ebay moto thumpers and also a lot of guys on unregisterd trail bikes using the grass area and tracks as speedway tracks, and a lot of the trails are being chewed up .
I do not have a problem with motocross bikes but I do have a problem with selfish individuals destroying the trails and creating noise polution for the unfortunate residents up there, I dont really know what one as an individual can do (dont risk getting attacked) but as a group we need to discourage these kids from destroying it for all of us, so if you see this happening and you are with a group of riders SAY SOMETHING.
In the kids defence it is not just the moto's that are a problem but also the big groups of "homeboy" boy racers that have been hanging around the top car park doing burn outs smoking weed and drinking and stripping cars.
Last night on dark when we were loading up the trucks there was still unregistered moto's tearing up and down the access road up to the top car park. If this keeps up the residents are now coping the full brunt of this noise down on the street level and obviously complaints will be filed which will increase the risk of access denied to this great area.
So if anyone has an idea or an input on how to deal with this please speak up ,( does anyone have conections with council) I would not like to see any threats or violence as most of them are just kids trying to have some fun just like the MTB community but they need some education on acceptable behavior in an urban fringe area .