Mr Brown said: "It was plainly a device.
"As the conspirators knew this fee demanded by the stronger party, the Qataris, wasn't going to just disappear. The conspirators were no naive beginner businessmen."
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Varley, of Notting Hill, Jenkins, of Malibu, California, Kalaris, of Knightsbridge, and Boath, of Henley-on-Thames, Oxfordshire, deny fraud by false representation, between 1 May 2008 and 31 August 2008.
Varley and Jenkins deny a second like charge of fraud by false representation, between 1 September 2008 and 30 November 2008.
The trial continues.
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