When the ball is awarded to a team for a throw-in on the sideline in its frontcourt, the
official responsible for the throw-in will hand, bounce pass or place the ball at the
disposal of the player who is to take the throw-in.
The official directly involved in handing the ball for the throw-in is responsible for
controlling the throw-in provisions and will give the time-in signal when the ball first
touches or is touched by a player on the playing court.
By making eye contact, he must first check that his partner is ready before
placing the ball at the disposal of the player.
In Diagram 92, the lead official, who is responsible for the throw-in on the sideline to his
left from the free-throw line extended to the endline, is required to hand or bounce
pass the ball to the player. As he will maintain his position as lead official after the
throw-in, he confirms this to his partner by standing on the endline side of the player.
Diagram 93 shows the trail official handing the ball to the player. The trail official should
stand to the right of the player, as he will continue in the trail position. The lead official
will move to a position so that all the players are "boxed-in".