pran, on 2014-October-19, 15:04, said:
So when he chooses to either forbid or require lead in a particular suit according to Law 50 D then that's it. and if he chooses to let the lead be free he simply postpones the final rectification till later during the play. He shall have no redress if his choice turns out unfortunate.
However, Law 50 E remains in force during the entire board so if offender's partner has used UI from the penalty card and thereby damaged declaring side there is still cause for redress.
A similar situation might occur when a player chooses to accept (or alternatively not accept) an insufficient bid or a call out of turn, and his choice turns out to be unfortunate. He will not have any redress from choosing an unfortunate alternative.
Not quite - if he accepts the insufficient bid then you are right - but if an insufficient bid is corrected by a lowest sufficient bid in the same denomination (27B1a) or by a call that has the same meaning (27B1b) then 27D kicks in to give redress.
Example : 1H : 2S : 2H - not accepted and corrected to 3H.
It turns out that the opener had a hand that would have passed over 2H but would have bid game over 3H (assuming 3H is not pre-emptive). The opener now passes and it turns out that 3H makes exactly or (for instance 2S would have been passed out). Then the Director can judge that the NOS have been damaged as the opener knew that their partner only had a 2H raise rather than a 3H one - or knew partner had heart support. There is no UI (by definition).