Rule 6-4

[Loudwhistle]

Originally Posted by iaref

Another situation related to this topic:

Jump ball is called and it is Team A's possession
Team A is inbounding the ball and throws it off of the backside of the backboard.
Team B is awarded the ball due to Team A throwing the ball off the backside of the backboard.

Does Team A retain the possession arrow in this situation or is it switched to Team B after Team B's throw-in??

6-4-5 basically says if the throwin team violates on an ap throwin they lose the arrow. In your case above, its a violation to hit the back of the backboard.