Actually, I don't touch the stuff at all.

Pardon my ignorance, but when I last officiated (years ago), things were obviously different. If A1 has the ball out of bounds (after a made bucket) and passes to A2, who is also out of bounds, is it now legal for B to reach through the plane and intercept that pass?

No. That's not the play being discussed in this thread.

Ok, "other Mark", riddle me this. In this case, what would the ruling be if, after being touched by B1 before it breaks the plane, the ball does not hit OOB, but continues inbounds? Is this then just a no-call?

Yes. There's been no infraction. Play on.

That's not legal, Jesse. As Bob pointed out, however, that's also not the play under discussion. We're not talking about a ball being passed between 2 or more teammates who are OOB. We're discussing a throw-in pass is thrown directly onto the court. In your case, it's a technical foul for the defender to touch the ball. In our case, it's perfectly legal.

....A1

........A2
______________________
...........A3

After a made bucket (I know this is a different play than previously discussed), A1 passes toward A2, who is out-of-bounds, and A3, who is inbounds. B intercepts while pass is still out of bounds. T or legal?

....A1

............A2
_____________________________
..................A3

After a made bucket (I know this is a different play than previously discussed), A1 passes toward A2, who is out-of-bounds, and A3, who is inbounds. B intercepts while pass is still out of bounds. T or legal?

Which pass?

A1 to A2? Technical foul.

A2 to A3? Legal.

It's just one pass. A2 and A3 are in alignment with each other, A2 still out of bounds, A3 inbounds. It's like a cut-off play in baseball, you don't know if A2 is going to "cut-off" the pass, or let it proceed to A3. And you really don't know who's going to catch the pass if B intercepts the ball before it gets to A2.

1) The official must decide to whom the pass was being made.

2) How is B going to get to the ball in the play descirbed?

3) You've seen this play how often?

I was tought - and do - give a warning for reaching over the line early in a game - as applicable.

T next

Others do this?

If A2 is OOB, in position to catch a pass, then B1 cannot touch that pass until it breaks the plane.

I do this and have occasionally wondered if I was guilty of "OOO".

To avoid this I've adopted a mechanic of raising and lowering my arm to indicate to B guarding the thrower that there is an invisible plane they must avoid crossing.

What do you all think?

OOO? Over officitating ________?

I tell the thrower spot or run.

I tell the defender not to break the plane.

It's preventive officiating.