[BillyMac]

Originally Posted by M&M Guy

If you look at the complete reading of 1-2-2, it says, "This restraining line becomes the boundary line during a throw-in on that side or end, as in 7-6. It continues to be the boundary until the ball crosses the line." So, whether there's an actual, painted line on the court, or the official determines the imaginary line, it is only in effect during a throw-in, and ceases to exist once the ball crosses the line on the throw-in. It is only in effect for that side or end of the court, so any restraining lines on the sides are not in effect for a throw-in along the endline. Also, the restraining line extends the entire length of that particular sideline or endline, so all throw-in restrictions of players on the court are included. In your example of a player already in bounds, dribbling across that line, there really is no line there, according to the rules. I believe the use of the word "may" in question 9 is because it is still the official's judgment as to whether to impose the restraining line during the throw-in.

M&M Guy: There aren't too many of us good looking guys left on this Forum, now that Chuck Elias, and Jurassic Referee have "left the building". Thanks for your great explanation, but unfortunately you're "preaching to the choir". I already know that this restraining line is used only during a throwin when space is limited behind the player making the throwin. The point that I was trying to make is that the original question simply says "A restraining line may be used as a boundary line when space is limited, and may extend the entire length or width of the court", and I don't believe that there's enough information in those twenty-five words to make the question true. With more information about a throwin about to take place, yes, it's probably true, but otherwise it's false.