If dad was remorseful, which he should be, he’d have said so
Really? Do you always clearly articulate your feelings immediately after doing something in a highly emotional state? I know I don't. You can't be so naive as to think that not saying you regret something is the same as not regretting it at all.
and the OP would not have come on here, she clearly has concerns over her DHs behaviour.
Well yes, concerns are justified. This is an unprecedented situation for her and her family. However there is such a thing as mountains and molehills.
End of your tether would surely warrant something far more infuriating than a 9 year old annoying you by switching off a TV, if that was the case there would be an awful lot of kids going about with bruises.
None of us have any idea about any possible external circumstances.
Whether you like it or not he has in fact commited common assault which is a criminal offence.
I don't think anyone is disputing that. On the other hand not every crime needs to be reported to the police. Or do you report your own family members for speeding at 5 miles over the limit? I mean, speeding is potentially lethal to multiple people, unlike slapping someone's leg, so is obviously a much more serious crime. Would you report your own child in the first instance for underage drinking or smoking? Both illegal, both harmful. If your DP was in a bar and someone shoved him from behind, and he turned around and punched the person, would you report your DH to the police?
The notion that social services or police intervention should be the first port of call is just nuts.