50c. Laws which give to either adversary the right to enforce a penalty, do not permit unlimited consultation. Either adversary may call attention to the offence and select the penalty, or may say, “Partner, you determine the penalty,” or words to that effect. Any other consultation is prohibited,[12] and if it take place, the right to demand any penalty is lost. The first decision made by either adversary is final and cannot be altered.
51. At any time during the declaration, a question asked by a player concerning any previous bid must be answered, but, after the final declaration has been accepted, if an adversary of the declarer inform his partner regarding any previous declaration, the declarer may call a lead from the adversary whose next turn it is to lead. If the dummy give such information to the declarer, either adversary of the declarer may call a lead. A player, however, at any time may ask what declaration is being played and the question must be answered.
52. A declaration legitimately made cannot be changed after the next player pass, declare, or double. Prior to such action a declaration inadvertently made may be corrected. If, prior to such correction, an adversary call attention to an insufficient or impossible declaration, it may not thereafter be corrected nor may the penalty be avoided.
DOUBLING AND REDOUBLING.
53. Doubling and redoubling doubles and quadruples the value of each trick over six, but it does not alter the value of a declaration; e.g., a declaration of “three clubs” is higher than “two royal spades” doubled or redoubled.
54. Any declaration may be doubled and redoubled once, but not more; a player may not double his partner’s declaration nor redouble his partner’s double, but he may redouble a declaration of his partner which has been doubled by an adversary.
The penalty for redoubling more than once is 100 points in the adverse honour score or a new deal; for doubling a partner’s declaration, or redoubling a partner’s double it is 50 points in the adverse honour score. Either adversary may demand any penalty enforceable under this law.
55. Doubling or redoubling reopens the bidding. When a declaration has been doubled or redoubled, any one of the three succeeding players, including the player whose declaration has been doubled, may, in his proper turn, make a further declaration of higher value.
56. When a player whose declaration has been doubled wins the declared number of tricks, he scores a bonus of 50 points in his honour score, and a further 50 points for each additional trick. When he or his partner has redoubled, he scores 100 points for making the contract and an additional 100 for each extra trick.
57. A double or redouble is a declaration, and a player who doubles or redoubles out of turn is subject to the penalty provided by Law 49.