The High Court has dismissed a case brought by Gibson Dunn & Crutcher on behalf of the Republic of Djibouti against one of its wealthiest citizens citing a "campaign of persecution" against him.

The 10-week civil fraud case centred on a number of claims against Boreh brought by the Republic, alleging corruption and bribery relating to a number of contracts, and consultancy and commission payments.

Gibson Dunn instructed Lord Falconer of Thoroton, Philip Brook-Smith QC to represent Djibouti while 7KBW silks Dominic Kendrick QC, Richard Waller QC were instructed by Bryne & Partners to represented Boreh.

In his judgement Justice Flaux said Abdourahman Boreh's false conviction of terrorism in 2009, and the subsequent worldwide freeze on his assets, in a separate case were also part of the "campaign".

The freeze was overturned when it was revealed last year that former Gibson Dunn partner Peter Gray "deliberately misled" the High Court when he submitted incorrectly dated evidence, which in part led to Boreh's conviction.

Gray was suspended and then dismissed from Gibson Dunn following the finding, which he did not appeal.

Flaux said: "One matter of considerable concern, which clearly is part of a concerted campaign against Mr Boreh and his businesses is the false terrorism conviction and the subsequent reprehensible conduct of the government."

The judgement ends the case brought by the Republic against Boreh.

In handing down his judgement Justice Flaux said: "I am left with the distinct impression that the Republic was intent on pursuing a scattergun approach against Mr Boreh of throwing as much mud as it could in the hope that something would stick, even though many of the matters were not ones in respect of which the Republic could have had a legitimate or sustainable claim."