Backcourt violaton

[WALDO]

I have been reading and learning from all your post for several years now, and seldom post, but looking for some feedback .Refresher question16: during jump ball, A-1 taps ball. Ball strikes floor in frontcourt of team A and rebounds into the air. A-2 leaps from the frontcourt and catches ball and lands in backcourt. Official rules backcourt violation. I Say no, my interpreter says yes. Based on 9-9-3, I can't see team control is established. Is it because it hit floor in front court? If it did not hit floor, definitley not a violation.