Ex-Gibson Dunn & Crutcher partner Peter Gray is suing his former firm claiming he was unfairly dismissed.

Gray was dismissed by Gibson Dunn in April 2015 just a month after he was found to have misled the court in the well publicised Djibouti case.

In a claim filed in the courts of the Dubai International Finance Centre last week Gray alleges the firm dismissed him without "reasonable grounds to do so" after an internal review "exonerated him of any deliberate misconduct or dishonesty".

Furthermore, Gray claims the firm "threw him under the bus" during the proceedings of the case of Boreh v the Republic of Djibouti in which Gray was found to have misled the court over the dating of a piece of evidence.

Boreh, one of Djibouti's wealthiest citizens, had been convicted of terrorism for his involvement in a 2009 terrorist attack, in part because of the evidence Gray had submitted. His conviction was later overturned when the dating error emerged.

Gray claims that when the issue of the dating error arose in the case he was advised not to attend the court by the firm's representatives and that in his absence they subsequently told the court Gray had "behaved badly".

In the claim Gray argues that all decision relating to the Djibouti case, including the dating error, were discussed with others at the firm and therefore he could not be held solely responsible.

He said the firm "undermined and materially prejudiced his position… in order to protect its own reputation, or at least the reputation of the senior partners involved".

Gray is seeking costs totalling $456,793.79 (£321,200) relating to his legal expenses, outstanding pay, expenses. In addition Gray is claiming unspecified sums for damages he suffered from Gibson Dunn's "negligence" and interest.

Dubai-based firm Al Bawardi Advocates & Legal has brought the case in Dubai for Gray, who has also turned to Payne Hicks Beach partner Julian Critchlow for representation. Critchlow is also involved in Gray's current application to the UK Court of Appeal to appeal the finding by High Court judge Mr Justice Flaux that he misled the court in the Djibouti case.

Last month the High Court dismissed a second case brought by Gibson Dunn on behalf of the Republic of Djibouti against Boreh.

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.

A spokesperson for Gibson Dunn & Crutcher said: "We reject the claims made by Mr Gray as being baseless and totally without merit and will be seeking to dismiss them."