LAWS OF DUPLICATE CONTRACT BRIDGE 1997

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LAWS
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LAW 16 | _UNAUTHORISED INFORMATION_
Players are authorised to base their calls and plays on information from legal calls and or plays, and from mannerisms of opponents. To base a call or play on other extraneous information may be an infraction of law.
A. | Extraneous Information from Partner
| After a player makes available to his partner extraneous information that may suggest a call or play, as by means of a remark, a question, a reply to a question, or by unmistakable hesitation, unwonted speed, special emphasis, tone, gesture, movement, mannerism or the like, the partner may not choose from among logical alternative actions one that could demonstrably have been suggested over another by the extraneous information.
| 1. | When Such Information Is Given
|  | When a player considers that an opponent has made such information available and that damage could well result, he may, unless the regulations of the sponsoring organisation prohibit, immediately announce that he reserves the right to summon the Director later (the opponents should summon the Director immediately if they dispute the fact that unauthorised information might have been conveyed).
| 2. | When Illegal Alternative Is Chosen
|  | When a player has substantial reason to believe (2) that an opponent who had a logical alternative has chosen an action that could have been suggested by such information, he should summon the Director forthwith. The Director shall require the auction and play to continue, standing ready to assign an adjusted score if he considers that an infraction of law has resulted in damage.
B. | Extraneous Information from Other Sources
| When a player accidentally receives unauthorised information about a board he is playing or has yet to play, as by looking at the wrong hand; by overhearing calls, results or remarks; by seeing cards at another table; or by seeing a card belonging to another player at his own table before the auction begins, the Director should be notified forthwith, preferably by the recipient of the information. If the Director considers that the information could interfere with normal play, he may:
| 1. | Adjust Positions
|  | if the type of contest and scoring permit, adjust the players’ positions at the table, so that the player with information about one hand will hold that hand; or,
| 2. | Appoint Substitute
|  | with the concurrence of all four players, appoint a temporary substitute to replace the player who received the unauthorised information; or,
| 3. | Award an Adjusted Score
|  | forthwith award an artificial adjusted score.
C. | Information from Withdrawn Calls and Plays
| A call or play may be withdrawn, and another substituted, either by a non-offending side after an opponent’s infraction or by an offending side to rectify an infraction.
| 1. | Non-offending Side
|  | For the non-offending side, all information arising from a withdrawn action is authorised, whether the action be its own or its opponents’.
| 2. | Offending Side
|  | For the offending side, information arising from its own withdrawn action and from withdrawn actions of the non-offending side is unauthorised. A player of the offending side may not choose from among logical alternative actions one that could demonstrably have been suggested over another by the unauthorised information.
|  | (2) When play ends; or, as to dummy's hand, when dummy is exposed.

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