Situation 10 still bothers me.

[Altor]

Originally Posted by Ref in PA

From the NFHS website, the 2007-2008 interpretations:
1. A1 who is in backcourt and defended by B1 who is in A's frontcourt attempts to pass the ball to A2 who is in Team A's front court. B1, who is completely in Team A's frontcourt, jumps and deflects the pass such that it is deflected back to A1. The ball hits off A1 while still in the air. Violation???

No, Rule 9-9-1. Team A must first establish control in the frontcourt for a backcourt violation to occur.

Originally Posted by Ref in PA

2. This would also mean A1, dribbling in backcourt, but feet stradling the division line is guarded by B1 who is completely in Team A's frontcourt. B1 reaches and bats the ball off A1's leg. Violation???

3. This would also mean A1, dribbling in completely (both feet and ball) in backcourt near the division line is guarded by B1 who is completely in frontcourt. B1 reaches and bats the ball off A1's leg. Violation???

No for both, Rule 4-4-6 and 9-9-1. The ball is still in the backcourt until both of the dribbler's feet and the ball touch in the frontcourt. Since team control has not been established in the frontcourt, there cannot be a backcourt violation.