loose ball, and screen?

[JugglingReferee]

Originally Posted by lpbreeze

on a loose ball if the offensive team in the frontcourt dives for the loose ball and slides. in my mind he had control of it and slide about five feet and into the backcourt. I wasn't sure if it was backcourt.

If you've ruled that possession was gained in the frontcourt and then same player with possession retreated to the backcourt, this is in fact a violation.

Originally Posted by lpbreeze

on a screen do you have to keep your arms down. in a game I watched a player kept putting both his arms in the air while setting a screen.

You can raise your arms while maintaining the principle of verticality. You cannot extend your arms outside of your cylinder. You also cannot steer the person you're screening. For the cylinder that defines the player, I use the 4-shoulder method: his 2 shoulders and where his shoulders would be should he rotate 90 degrees.

Originally Posted by lpbreeze

just thought of this- in high school ball are you allowed to have your arms up before the ft. I thought no but I keep seeing it including NCAA games. perhaps high school refs let it slide. I've seen refs tell players not to wiggle their fingers up in the air.

Yes, you've allowed to have your arms up in the air. You're not allowed to move your arms about to disconcert the free thrower.

Originally Posted by lpbreeze

If the opposing coach yells out something to his team during the Ft is that a violation- shoot again if its a miss?

I've been taught to nip this in the bud. I believe it was a POE one year and I've heard more than 1 nearby local board interpret that this is in fact disconcertation. My take now is to call the first time. That sends the message loud and clear, while also following the rule as written.