Held ball during AP throw in

[bob jenkins]

Originally Posted by OKREF

7.6.4:A
While attempting a throw in A1 holds the ball through the plane of the end line. B1 (a) slaps the ball from A1's hand(s); or (b) simply grabs the ball and then throws it through B's basket.

Ruling: In (a), no violation has occurred and play continues. In (b), score two points for B.

Note however that if B makes contact with A in this situation, it's an intentional foul (by rule)