Hawkesbury Bridge Club

What and when is a revoke established?
1 A revoke is established when the offender or his partner leads or plays to the following trick.
2 When the offender or his partner names or otherwise designates a card to be played to the following trick.
3 When a member of the offending side makes or agrees to a claim or concession of tricks orally or by facing their hand or in any other way.