[tjones1]

Was this after a bucket?
If the player reached through, then touched the ball - delay or whack if second delay. If the player reached through and touched the ball - whack!

10-3-10
Reach through the throw-in boundary-line plane and touch or dislodge the ball as in 9-2 Penalty 3.

9-2 Penalty 3
If an opponent(s) for the thrower reaches through the throw-in boundary-line place and touches or dislodges the ball while in possession of the thrower or being passed to a teammate outside the boundary line (as in 7-5-7), a technical foul shall be charged to the offender. No warning for delay required.