[bannind]

It is not a violation as described in the first post. Yes a deflection or tap ends the throwin, but it does not establish front/backcourt possession.

I believe the situation that will cause the most problems, because of the clarification of when a throwin ends, is with momentum causing a player who catches a ball with one foot in the front court and momentum carries them into the back court. While legal if during a throwin, if the ball has been deflected (in a manner that is considered a legal touch) and A1 gains control of the ball with one foot in the front court and momentum takes them into the back court - at that point there is a violation. That is because the consideration to allow a players momentum to legally take them into the back court only exists during a throwin. If the ball has been legally touched the throwin is over and that consideration no longer exists.

But in reference to the original posters question - there would be no violation.

but that is just my reading on the rules.