The U.K. Solicitors Disciplinary Tribunal (SDT) has banned former Gibson Dunn & Crutcher partner Peter Gray from practicing in the profession after it found that he “deliberately deployed a misleading strategy” in court during a high-profile case in 2015.

In 2015, the U.K. High Court ruled that Gray had “deliberately misled” the court with incorrectly dated evidence in a case involving the Republic of Djibouti and one of its wealthiest citizens, Abdourahman Boreh.