[Al_Capone_Junior]

I agree. Collusion is a very serious matter, not one you should go easy on. I'd ban all of them from entering again. They may try to whine and claim they're being unfairly singled out, but ...

The floor reserves the right to make any decision, regardless of the strict interpretation of the rules, in the interest of maintaining the fairness and integrity of the game.

Also, the floor can see any hand at any time. I'd have started looking at all these guys hands as soon as it was "painfully obvious."