I think it's a moot point whether you consider South's comment a call which was made and corrected to a pass, accepted by West, or just an extraneous comment. Either way it is unauthorized for North.
mgoetze, on 2014-April-28, 07:23, said:
Might be worth a poll but I strongly suspect Pass will turn out to be a LA for North. In which case I'll need a thorough explanation of EW's methods uncontested, as I also suspect they might wind up in a rather unlucky 3NT contract...
If we impose a pass on North (and surely we do), East will complete the transfer to show precisely two hearts, West will correct to clubs and they will finish in 5
♣. West said he would not make any cue-bid or splinter in case partner thought he was agreeing hearts.
I adjusted the score to 5
♣(E)=, NS-600. I didn't penalise NS for failure to avoid taking advantage of unauthorized information because they were inexperienced, and also because no one had called the director until it was too late for me to warn them of their obligations.
3♣ = 11-15, 6+ clubs (alerted). Before the stop card was put away, South said "I'm getting the red card out", then noticed the alert, asked for an explanation and passed. 3♦ = 5+ hearts. Result: 5♠X(N)-2, NS -300. The TD was called at the end of play. EW thought the 3♠ bid could have been influenced by the comment. The facts are not in dispute. EW are a strong, experienced partnership, NS much less so. What would your ruling be?