Young couple next door living with his father and mother who doesn't live there, but spends most days at the house. They have violent rows at least 3-4 times a week, in and out of the house, up and down the street, screaming shouting and hitting out at each other. Father gets involved the with shouting/swearing at them, son in particular and son and father have rows/fights too. A lot of it seems to be cannabis induced (I think there are other drugs involved too, but can't be certain).
I don't feel able to call the police during an episode, as it would be obvious who has reported them and it is already pretty awful living next door to them. However, I am moving next week, and I am wondering if I could make an anonymous report to the police so that they are aware of the violence in the household, but am wondering if the police would be able to act, or if they would just think I was being a nosy neighbour? (If there were children involved, I wouldn't hesitate for a second)