Zine El Abidine Ben Ali temporarily the (presidential) duties." However, this arrangement was very short lived, because early the following day (15 January 2011) the Constitutional Court of Tunisia determined that Ben Ali was not "temporarily unable" to exercise his duties and that the presidency was in fact vacant. The arrangements he had made with the Prime Minister before leaving the country were found to be unconstitutional under article 57 of the constitution. The country's constitutional court, the highest legal authority on constitutional matters, announced the transition saying that Fouad Mebazaa (the Speaker of Parliament) had been appointed interim president. Mebazaa took the oath in
Ridha Grira Banque Tuniso-Libyenne. He took on the role of General Secretary of the Government. On January 16, 1992, he was assigned the position of General Secretary of Foreign Affairs Ministry. On April 22, 1999, he was chosen as Minister of State Properties and Land Affairs. On 14 January 2010, he became the Minister of National Defense. After the ousting of the Tunisian President Zine El Abidine Ben Ali during the revolution of 2011, Ridha Grira was reappointed by Prime Minister Mohamed Ghannouchi to his position within the « national unity government » formed by Mohamed Ghannouchi. This government was strongly opposed