he has on a number of occasions hit him in the face when he got mad at him
Wow, you can call social services for that, nowadays?
I could have called social services on my parents a hundred times over. Sheesh.
It's more that I know what he did to me when I was a kid, and I foolishly thought that he had changed with his new kids. I also know that his g/f wouldn't tell me everything.
And really, hitting a two year old in the face many times over... shouldn't that be reported regardless of all the extrapolated evidence I happen to be aware of?
The problem is, you don't really have any evidence. You only have hearsay. As much as you would like to help, I don't know if the authorities would be interested in pursuing a complaint from you, unless you a. saw the child bruised up, or b. the parents were a homosexual couple.