CHAPTER V
THE AUCTION 

PART I
CORRECT PROCEDURE

SECTION ONE
AUCTION PERIOD

LAW 19 - DOUBLES AND REDOUBLES 

A. Doubles

1. Legal Double

A player may double only the last preceding bid. That bid must have been made by an opponent; calls other than pass must not have intervened.

2. Proper Form for Double

In doubling, a player should not state the number of odd tricks or the denomination. The only correct form is the single word "Double".

3. Double of Incorrectly Stated Bid

If a player, in doubling, incorrectly states the bid, or the number of odd tricks or the denomination, he is deemed to have doubled the bid as it was made. (Law 16 - Unauthorised Information - may apply.)

B. Redoubles

1. Legal Redouble

A player may redouble only the last preceding double. That double must have been made by an opponent; calls other than pass must not have intervened.

2. Proper Form for a Redouble

In redoubling, a player should not state the number of odd tricks or the denomination. The only correct form is the single word "Redouble".

3. Redouble of an Incorrectly Stated Bid

If a player, in redoubling, incorrectly states the doubled bid, or the number of odd tricks or the denomination, he is deemed to have redoubled the bid as it was made. (Law 16 -Unauthorised Information - may apply.)

C. Double or Redouble Superseded

Any double or redouble is superseded by a subsequent legal bid.

D. Scoring a Doubled or Redoubled Contract

If a doubled or redoubled bid is not followed by a subsequent legal bid, scoring values are increased as provided in Law 77.