In basketball if a player has past half court and passes it to a player leaping from the back court is it a violation?

Answer 1

Yes, the player receiving the pass must have established both feet in the front court to avoid having an over and back violation called.

Answer 2

No, but if he/she comes down and his/her feet are behind it , it is a back court violation.

Answer 3

The half court line would be considered out of bounds.