I was driving by a car park of a cafe (children’s play type) on my way home from work when I pulled in to take a call. I saw a woman hit and physically harm a man around the same age (early twenties), I think it was her boyfriend or husband. She was obviously distressed and shouting, he was cowering. They had small children with them. She drove away a few minutes later and he went back in to the cafe, visibly upset.
I made a note of her number plate as she drove away with one of the children. Would you phone the police, knowing that they could trace them from her number plate?