[3] He is a former President and member of the Appeals' Committee of the Organization of Petroleum Exporting Countries.

[5] Elias is a visiting professor in international law at the Department of Law, Queen Mary University of London[6] and has taught at the King's College London and the University of Buckingham.

He was Registrar (United Nations Assistant Secretary-General), of the International Residual Mechanism for Criminal Tribunals (IRMCT) until 30 June 2020.

[7] Elias has held several functions including being a Judge for Staff Appeals, Special Tribunal for Lebanon (STL); Legal Adviser and Director, Organisation for the Prohibition of Chemical Weapons (OPCW), The Hague; Executive Secretary (Registrar), World Bank Administrative Tribunal, Washington D.C.; Senior Legal Officer, OPCW; Special Assistant to the Executive Secretary, United Nations Compensation Commission (UNCC), Geneva and Legal Adviser, Governing Council Secretariat, UNCC.

[8] In early 2022, Elias was appointed by the International Monetary Fund to an external panel to strengthen institutional safeguards in the wake of a data scandal involving IMF Managing Director Kristalina Georgieva during her time at the World Bank.