48. The loss on the original declaration by the dealer of "One Spade" is limited to one hundred points whether doubled or not, unless redoubled. Honors are scored as held.
49. If a player make a declaration (other than passing) out of turn, either adversary may demand a new deal, or may allow the declaration so made to stand, in which case the bidding shall continue as if the declaration had been in order.
50. If a player make an insufficient or impossible declaration either adversary may demand that it be penalized, provided such demand be made before an adversary has passed, doubled or declared. In case of an insufficient declaration the penalty is that the declarer must make his bid sufficient and his partner is debarred from making any further declaration unless an adversary subsequently bids or doubles. In case of an impossible declaration the penalty is that the declarer is considered to have bid to take all the tricks and his partner cannot further declare unless an adversary subsequently bids or doubles. Either adversary, instead of accepting the impossible declaration, may demand a new deal or may treat his own or his partner's last previous declaration as final.
51. If, after the final declaration has been made, an adversary of the declarer give his partner any information as to any previous declaration, whether made by himself or an adversary, the declarer may call a lead from the adversary whose next turn it is to lead; but a player is entitled to inquire, at any time during the play of the hand, what was the final declaration.
52. A declaration legitimately made cannot be altered after the next player has passed, declared or doubled. Prior to such action by the next player, a declaration inadvertently made may be corrected.
DOUBLING AND REDOUBLING
53. The effect of doubling and redoubling is that the value of each trick over six is doubled or quadrupled, as provided in Law 4; but it does not alter the value of a declaration—e.g., a declaration of "Three Clubs" is higher than "Two Royal Spades" even if the "Royal Spade" declaration has been doubled.
54. Any declaration can be doubled and redoubled once, but not more; a player cannot 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.
55. The act of doubling, or redoubling, reopens the bidding. When a declaration has been doubled or redoubled, any player, including the declarer or his partner, can 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 fifty points in the honor column, and a further fifty points for each additional trick. If he or his partner has redoubled, the bonus is doubled.