DS is 16, he goes to his dads regularly, ex does drink a lot but I don't think he did when he had DS.
I'm currently working away, last night DP messaged me and told me that he picked DS up from his dads as DS told him his dad was drunk and pushed him into a wall and his hand was hurting, DP told me he'd take DS to hospital today and get his hand checked.
Would you report this to the police or SS? I'm asking about SS as older children are in the house (not exs biological children) and they witnessed ex pushing DS and one of them told him to leave DS alone but ex told them to shut up. I'm not sure where exs partner was at the time.