Double Violation
 

Was having a discussion
with a couple of officials at our game the other nite
and one fellow brought up the situation of the defence
stepping in the lane after a free throw was shot but
befor the ball hit the rim, the shot was an air ball
and a violation was called on the defence. I was of the
opinion that this is a double violation. I beleve Rule 9
Art.4.4.b page 53 of the case book backs me up. Correct?

More Information Needed ...
 

NFHS or NCAA? Disconcertion or not?

NFHS: The shooter and all the players in the designated lane spaces must wait until the ball hits rim or backboard before entering the lane. Players, other than the shooter, and the players in the designated lane spaces, are to remain behind the free throw line extended and behind the three point arc, and may not penetrate the free throw line extended and the three point arc until the ball hits rim or backboard. During a free throw, no opponent, including bench personnel, may disconcert the free thrower.

You are correct that this is a double violation.

If the defense stepped in before the ball was shot, you could have disconcertion, but that's not possible (or at least extremely unlikely) if hte player didn't step in until after the ball had been shot.