Laws of Official Downball
Law 5 (Returning the ball)

1. Returning the ball

To return the ball the returner must strike the ball once with any of their person have the ball then bounce once on the ground then hit the wall.

2. The Returner 

The returner is the person who hits the ball.

3. Returner failing to return the ball If the returner fails to return the ball the umpire shall call “Out” and the returner who failed to return the ball will be out.

4. Hitting the ball after returning it If the ball is hit by the returner immediately after they have returned it or it has bounced once on the ground the umpire shall say “Hit the ball twice in a row” and they will be given out.