backcourt, II- Control

[Nevadaref]

Any catching or holding of the ball establishes player control and thus team control as well. If the player catches/holds the ball, even with only one hand, while airborne, then the ball has the same fc/bc status as the player and that is based upon where the player was last in contact with the floor.

So if you deem that the player held the ball with one hand and threw it, then a backcourt violation has occurred. However, if the player merely bats the ball without ever holding it, then there was no violation.