This is easy to stop! all you got to do is report it for a while. this means neighbors getting in touch with each other, and hoping they are not all abusive! they will report each other quickly and look after each other.
Now, if the police need evidence of the abuse, they could take testimonies or even 'medicals' to see if the events turned violent. but, there is also emotional issues where people try to hurt others with the ways they feel things. this could mean that there needs to be a complaint to this person, and then they will be aware of the events.
I remember dealing with this before. actually, it is making them feel 'wrong' that will turn it around, as nobody wants to feel wrong! you could do this by consulting someone else and debating it with them, until you feel you are ready to confront them. if it turns violent, well, off to the cops!