Over and Back

[Lotto]

I'm surprised no one has pointed this out, but team A does not have to establish team control in the front court to have a back court violation. You need 4 ingredients for a back court violation:

Team A has control.
The ball attains front court status.
Team A is the last to touch (before the ball attains back court status).
Team A is the first to touch (after the ball attains back court status).

Team A has control, the ball attains front court status when A2 catches it and attains back court status when A2 lands in the back court. A2 is the last to touch, A2 is the first to touch, so TWEET!

Another situation: A1, standing in the back court, throws a bounce pass to A2. The ball bounces in the front court. A2, who is also standing in the back court, catches the ball. TWEET! This is the classic example of a back court violation where team A never has control in the front court.