The Criterion Bar is a bar in London. John Watson and Stamford had a drink together in this bar. During the conversation, John discussed his experiences in Afghanistan and his predicament in finding somewhere to live, which lead to his introduction with Sherlock Holmes.
Behind the scenes Edit
In the unaired pilot of Sherlock, John Watson and Mike Stamford were reunited in the Criterion Bar, just like in the original stories. However this location was changed to Russell Square Gardens in the Sherlock episode A Study in Pink. The word Criterion is on the coffee cup that John was drinking from at that meeting, as the creators of the series wanted "to honour" that meeting.
Allusions to Conan Doyle stories Edit
The Criterion Bar is the place where John Watson initially learned of Sherlock Holmes from Stamford in the Sir Arthur Conan Doyle story A Study in Scarlet.