Can't pm you for some reason - so in response to another of your posts...
Every time there is an incident, make a note of the date, time, and everything said or done. All speech should be in quotes and should be verbatim. Just do it like a diary. Try not to retaliate in any way. If you do need to speak to them, do not swear or make threats.
Keep a copy of the diary sheets for yourself and send one to the council Anti-Social Behaviour officer and another to the local Police Officer (NBO - Neighbourhood Beat Officer).
Also every time something happens ring the Police and say you want a log number for your ASB diary sheets.
And finally if you tell me where you live I will find out who your ASB co-ordinator and NBO are.
Good luck.
Jon