LAW 61 - FAILURE TO FOLLOW SUIT - INQUIRIES CONCERNING A REVOKE
A. Definition of Revoke
Failure to follow suit in accordance with Law 44 or failure to lead or play, when able, a card or suit required by law or specified by an opponent when exercising an option in rectification of an irregularity, constitutes a revoke. (When unable to comply see Law 59).
B. Right to Inquire about a Possible Revoke
1. Declarer may ask a defender who has failed to follow suit whether he has a card of the suit led.
2. (a) Dummy may ask declarer (but see Law 43B2(b)).
(b) Dummy may not ask a defender and Law 16B may apply.
3. Defenders may ask declarer and, unless prohibited by the Regulating Authority, may ask one another (at the risk of creating unauthorized information).
Law 60 - PLAY AFTER AN ILLEGAL PLAY | Law 62 - CORRECTION OF A REVOKE |