On 9 June 2009, the Foreign and Commonwealth Office announced that Johns would succeed Sir Robert Fulton as Governor of Gibraltar later that year.
On 1 February 2010, The Convent announced that acting on the advice of the Judicial Services Commission, Governor Sir Adrian Johns had on behalf of Queen Elizabeth, formally appointed Anthony Dudley as Chief Justice of Gibraltar.
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Polish and Gibraltarian clergy also attended, and the ceremony was hosted by the Governor of Gibraltar, Vice Admiral Sir Adrian Johns, and the Mayor of Gibraltar, Anthony Lima.