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A. Appropriate Communication between Partners
1. Communication between partners during the auction and play shall
be effected only by means of calls and plays.
2. Calls and plays should be made without undue emphasis, mannerism
or inflection, and without undue hesitation or haste. But Regulating
Authorities may require mandatory pauses, as on the first round of
the auction, or after a skip-bid warning, or on the first trick.
B. Inappropriate Communication between Partners
1. Partners shall not communicate by means such as the manner in
which calls or plays are made, extraneous remarks or gestures,
questions asked or not asked of the opponents or alerts and
explanations given or not given to them.
2. The gravest possible offence is for a partnership to exchange
information through prearranged methods of communication other than
those sanctioned by these Laws.
C. Player Receives Unauthorized Information from Partner
When a player has available to him unauthorized information from his
partner, such as from a remark, question, explanation, gesture,
mannerism, undue emphasis, inflection, haste or hesitation, an
unexpected* alert or failure to alert, he must carefully avoid
taking any advantage from that unauthorized information.
D. Variations in Tempo or Manner
1. It is desirable, though not always required, for players to
maintain steady tempo and unvarying manner. However, players should
be particularly careful when variations may work to the benefit of
their side. Otherwise, unintentionally to vary the tempo or manner
in which a call or play is made is not in itself an infraction.
Inferences from such variation may appropriately be drawn only by an
opponent, and at his own risk.
2. A player may not attempt to mislead an opponent by means of
remark or gesture, by the haste or hesitancy of a call or play (as
in hesitating before playing a singleton), the manner in which a
call or play is made or by any purposeful deviation from correct
procedure.
E. Deception
A player may appropriately attempt to deceive an opponent through a call or
play (so long as the deception is not protected by concealed partnership
understanding or experience).
F. Violation of Proprieties
When a violation of the Proprieties described in this law results in damage
to an innocent opponent, if the Director determines that an innocent player
has drawn a false inference from a remark, manner, tempo, or the like, of
an opponent who has no demonstrable bridge reason for the action, and who
could have known, at the time of the action, that the action could work to
his benefit, the Director shall award an adjusted score (see Law 12C).
* i.e. unexpected in relation to the basis of his action.
Not limited to illegal communications with partner.
It is also possible to mislead an opponent with a question asked when there is a better time to ask the question.