I agree with rbattelle. Drug dealers do not have a reputation as "nice people". If they see you videotaping them, they might decide to get even. Whatever you do, be sure that they can`t find out who did it.
Good Luck!
In one way I agree but in another I dont.
The reason thing s are the way they are today is because people do not get involved and the police are about worthless.
I would get as many phone numbers as possible for the local P. D. and call EVERYTIME someone shows up at the house and tell them they are selling drugs again and just become a pain in everyones *** and call the local media.