My son is being bullied by another child, the bully is a little bit younger so my son can't even defend himself otherwise he gets the blame. I've tried talking to the other child multiple times, I've told them both to stay away from each other and I've even tried talking to the other boys mum but she did nothing. My son is by no means perfect and he has retaliated and probably antognised to some extent but this child has hit my son with a metal bar, and a baseball bat, he has pulled on his hair and ears and tried to choke him. I'm not sure what else I can do. I have thought about phoning the police as a last resort, but I'm worried that could make it worse, I've spoke with them before and because they are young children they don't seem to care/there isn't a lot they can do. It is happening nearly every day and is stressing me out to the point where I feel incredibly unwell, I feel so bad for my son but I don't know what else I can do :(