What's the call (NFHS)?

[Paul LeBoutillier]

Hi Everyone! Been awhile since I logged on but I have a question for which I need a reference (Rule or Case Book).

"A" has the ball in their frontcourt and A1 bobbles the ball into the backcourt, where it continues to roll UNTOUCHED to the far end line out-of-bounds. Where does B get a throw in?

Again, please site Case or Rule book in your reply.

Thanks!

Paul