Unless prohibited by Law, any player may draw
attention to an irregularity during the auction
period, whether or not it is his turn to call.
Unless prohibited by Law, declarer or either
defender may draw attention to an irregularity
that occurs during the play period. For an
incorrectly pointed card see Law 65B3.
Any player, including dummy, may attempt to
prevent an irregularity (but for dummy subject
to Law 42 and Law 43).
Dummy may not call attention to an
irregularity until play of the hand is concluded
(but see Law 20F5 for correction of declarer's
apparently mistaken explanation).
There is no obligation to draw attention to an
infraction of law committed by one's own side
(but see Law 20F5 for correction of partner's
apparently mistaken explanation).
After Attention Is Drawn to an Irregularity
The Director should be summoned at once when attention is drawn to an irregularity.
Any player, including dummy, may summon the Director after attention has been drawn to an irregularity.
Summoning the Director does not cause a player to forfeit any rights to which he
might otherwise be entitled.
The fact that a player draws attention to an irregularity committed by his side does not
affect the rights of the opponents.
No player shall take any action until the Director has explained all matters in regard to rectification.
Premature Correction of an Irregularity
Any premature correction of an irregularity by the offender may subject him to a further
rectification (see the lead restrictions in Law 26B).