[Nevadaref]

Just so that we don't lose sight of the crux of the debate in this thread, here are two plays in which an official needs to know if B2 should be classified as a "defensive player" and thus would be granted "the defensive exception" to the backcourt violation.

1) Throw-in for Team A near the division line in their backcourt (Team B’s frontcourt).
A1’s throw-in is deflected by B1 who is applying direct pressure on A1. B2 jumps from his frontcourt, catches the ball in the air, and lands in his backcourt.

2) A1 steals the ball from B1 and races down the court on a fast break. A1 attempts a lay-up, but B1 who is running hard while trailing the play is able to catch-up and block the try for goal. The ball rebounds hard off the backboard and bounces out to the division line. B2 jumps from his frontcourt, catches the ball while in the air, and lands in his backcourt.