When does an umpire say throwing in netball?

An umpire calls "throw in" in Netball when the ball goes out of play over the sidelines, typically after being last touched by a player from the opposing team. The throw-in is taken by the team that did not touch the ball last, and it must be executed from the point where the ball crossed the line. The player taking the throw-in must keep both feet behind the line and have at least one foot on the ground when releasing the ball.