Backcourt or no?

[jcurtin]

Situation that happened today while I was doing a Girls JV Game. I reacted based on what my mentor told me, but I want to make sure...

Team A has possession of the ball in its frontcourt, and A1 is dribbling. B1 bats it away, both players run over to the ball, fighting for possession, then the ball hits off A1's arm and goes into the backcourt. A1 retrieves the ball in the backcourt.

Violation? Could you provide a rules reference, either way?

Thanks