Ya know...I don't think it's anything horrible though.
Because, nowdays...even a slight shove counts as assault. For all we know, he might have shoved his ****** (hey, even grown up bros and sis fight like ****) and she accidently fell towards the *** and suddenly, like that...he "assaulted" both of them.
They could have running on tons of **** off-ness when they even called the cops.
But, for some reason...like you said Violator...Bale's never been in trouble before, I'd give him the benifit of the doubt.
That and we have no idea what type of relationship he has with his ****** and ***. For all we know they're all enemies or something.