Conduct and Etiquette
Bridge is a game that asks players to behave ethically. Players should maintain a courteous attitude at all times. For a more complete description of the matters pertaining to conduct and etiquette see the document Etiquette.
The club Recorder
If you feel that an opponent has acted improperly, what do you do? There are a number of possible actions, one of which is to contact the club recorder. The procedure for this is given in the Recorder document.
The club constitution was revised and was accepted by the membership at a Special General Meeting on 11 November 2017. Here is a copy of the NBC Constitution.