[just another ref]

Originally Posted by wanja

A fellow official called me regarding this play which was disputed among officials. A1 attempts to dribble behind his back and the ball hits A2 and then rolls before A1 picks it up and begins a new dribble. Is this an illegal (double) dribble? My response is yes based on the determination that A1's action was neither a pass or fumble. I didn't locate a relevant case.

Here's rule 9-5.

A player shall not dribble a second time after his/her first dribble has ended, unless it is after he/she has lost control because of:

Art 1... A try for field goal.
Art 2... A touch by an opponent.
Art 3... A pass or fumble which has then touched, or been touched by another player.

4-31: A pass is movement of the ball caused by a player who throws, bats, or rolls the ball to another player.

This was a pass.