Riyadh, Sha'ban 3, 1436, May 21, 2015, SPA -- Crown Prince Mohammed bin Naif bin Abdul Aziz, Deputy Prime Minister and Interior Minister as well as President of the Supreme Council of Naif Academy for National Security, patronized here on Wednesday evening a graduation ceremony held by the academy. The ceremony coincided with the 50th anniversary of the establishment of the academy. --SPA 01:14 LOCAL TIME 22:14 GMT www.spa.gov.sa/w