The following example of the Barricade Coup is copied from the publication authored by Dr. Bertrand Romanet with the title Bridge total: Comment bien jouer au bridge sans trop se fatiguer. Editeur/Publisher: Fayard impr. Firmin-Didot, Paris, France. First edition was printed in the year 1966. ASIN: B0014PUVKE. LC: 67073829. (Note: A rough translation is: Bridge Total: How to Play Bridge Without Becoming Too Tired.
Dr. Bertrand Romanet was born in the year 1921 in Paris, France. He is the author of four bridge-related publications. He was a World Life Master of the World Bridge Federation. He served as the Director of the French Bridge Federation (Federation Française de Bridge), and he served also as President of the Bridge Club of Physicians since he was also a professional and career physician.
He also won the Bermuda Bowl Championship in the year 1956. His team mates were: Rene Bacherich, Pierre Ghestem, Pierre Jais, Roger Lattes, Roger Trezel, and Robert de Nexon (npc).
Note: The term barricade is defined as something that serves as an obstacle; a barrier. It also means to close off or block with a barricade, or to keep in or out by means of a barricade. The word is from Old French barriquer and from the present day French word barrique.
The following example of the Barricade Coup is taken from his publication Bridge Total, which he published in the year 1966.
Declarer: South
Contract: 3 No Trump
Lead: 
8
In the case that the declarer plays the 2 or the 10 from the dummy, then East should play the 6 or the Jack respectively. If South plays low from the dummy, then the defenders allow the declarer to win the first trick with Queen. West will be able to get in later with the Ace of Diamonds and immediately play another Spade to the dummy's K2 or K10.
Note: neither East or West may discard a Spade under these circumstances.
However, if South plays King at trick one, then East is forced to play the Ace. This results in the fact that the Queen continues to remain a stopper (barricade) in Spades and the Ten in dummy prevents East from playing another Spade.
Note by the author: this position is related to the Bath Coup.
If you wish to include this feature, or any other feature, of the game of bridge in your partnership agreement, then please make certain that the concept is understood by both partners. Be aware whether or not the feature is alertable or not and whether an announcement should or must be made. Check with the governing body and/or the bridge district and/or the bridge unit prior to the game to establish the guidelines applied. Please include the particular feature on your convention card in order that your opponents are also aware of this feature during the bidding process, since this information must be made known to them according to the Laws of Duplicate Contract Bridge. We do not always include the procedure regarding Alerts and/or Announcements, since these regulations are changed and revised during time by the governing body. It is our intention only to present the information as concisely and as accurately as possible.