Stack on throw-in
 

I'm assuming everyone knows what I mean when the offensive team stacks their players on a throw-in. Can the defensive team insist on getting between players? I'd like to know for NFHS rules or NCAA rules in case there is a difference. Also for the few of you who work or know FIBA rules, is there a provision allowing the defensive team to get between the offensive players?

The reason I'm asking is that I can't find anything in FIBA rules that would stop the offense from doing this. I'm thinking perhaps it comes from our American neighbours (or neighbors).

NFHS - No. Unless you mean the stack is adjacent/parallel with, and within 3 feet of, the line.

I don't know if college is different

It's common myth that the defense is allowed in between.

I don't know that there is a written rule. But the application here is that we allow teams to give space if defense wants it.

There may not be rules support but on dead balls before the at the disposal of the inbounder while we deal with the table, coaches, subs etc. We certainly don't want defense actively tagging/defending or engaging players on the floor. Which is what they would have to do to ostensibly force the other team into setting moving screens in order to get their stack set up. To avoid this if the defense tries to get in the stack we just tell the stack to give room. To avoid unsportsmanlike dead ball fouls we just tell them to give room.

Probably comes from people applying the NBA rule to lower levels. In the NBA, the defender would be allowed to get in between

End of Rule 7 for nfhs and ncaa. By "stack" I assume you are talking about a line perpendicular to end line or sideline.
Defense is not allowed in. As Bryan said, in high school if players line up parallel/ side by side to the end line within 3 feet of it they have to be let in. ncaa says within 6 feet and parallel they have to be let in. Ncaa actually has provision saying teammates can be adjacent if perpendicular.

And the myth gets reinforced. :(

There Already Is A Written Rule ...
 

https://c1.staticflickr.com/7/6230/6...473e048e_m.jpg

Let's go to the videotape:

THROW-IN ADMINISTRATION 7-6-5: Teammates shall not occupy adjacent positions which are parallel
to and within 3 feet of the boundary line if an opponent desires one of the positions.

7.6.5 SITUATION: Prior to a throw-in on the end line near A’s basket, A1, A2
and A3 line up shoulder-to-shoulder parallel to the line and: (a) within 3 feet of it;
or (b) more than 3 feet from it. In both cases, Team B requests space between
the Team A players. RULING: In (a), the request is granted and a Team B player
may position between each of the Team A players. In (b), the request is denied.

Not to be confused with:

JUMP-BALL ADMINISTRATION 6-3-3: Teammates may not occupy adjacent positions around the center
restraining circle if an opponent indicates a desire for one of these positions before the referee is ready to toss the ball.

You were just baiting Billy, right Bob? :p

Billy, he wasn't talking about parallel positions, so there is no rule (which means what he's doing isn't supported by rule).

Confucius Says ...
 

If it's not illegal, then it's legal.

Or, from a slightly different viewpoint: There is no rule that prohibits the throw-in team from positioning its players as close together as they want either in a stack perpendicular to the boundary or adjacent parallel to the boundary with the exception that you gave from the rule book and casebook.

There are already rules to deal with this. Call the first foul before the offense "has" to set an illegal screen.

There is one positive aspect to the way things run around here. We can't go making crap up. If we do and the coach calls us on it, our butts are going to be in the sling.

You realize that parallel and perpendicular are opposites, right?

Just How Often Do We See Alexander Pope Quoted Here On The Forum ???
 

I was merely citing the "real" rule that some non-officials often confuse with the "mythological" rule, while also citing a situation where alternate team players are the rule, i.e., the jump ball circle.

"A little learning is a dangerous thing." (Alexander Pope, 1709)