When double does not mean penalties for the opposition
It is important to know exactly when the negative double applies. The bidding must follow this sequence
The Sequence for a Negative Double
|Opener Bids||Opponent Overcalls||You Bid||Opponent Bids|
|1C||1S||'X' negative double||Pass|
The opening bid may be in any position even a passed hand but it must be one of asuit (not a notrump bid). The opposition bid must be in a natural right up to the level of 4.
Point Range of a Negative Double
The minimum points is usually 7 or more. Many partnerships agree that with 10+ points you would be free to make other bids so usually the maximum partners agree on is 10 points or can depend on your partnership agreement