HE CHIEF EMEKA ANYAOKU joined his country’s diplomatic service following Nigeria’s independence and, in 1963, was posted to Nigeria’s Permanent Mission to the UN in New York. He was elected Secretary-General of the Commonwealth in 1990, serving in this post until 1999. In 1991 he led Commonwealth leaders to agree the Harare Declaration which set out to give contemporary relevance to the Commonwealth’s beliefs and purposes and to give it a new mandate, especially in relation to Apartheid. Currently, he is a Vice-President of the Royal Commonwealth Society.

ARCHBISHOP EMERITUS K G HAMMAR is a Doctor of Theology specialising in Hermeneutics. He was Dean of the cathedral in Lund and Bishop in the diocese of Lund before becoming the Archbishop of Uppsala, head of the Church of Sweden (1997 to 2006). He is now visiting professor emeritus at the Centre for Theology and Religious Studies, Lund University, Sweden.

LORD DAVID LEA was Assistant General Secretary of the UK Trades Union Congress 1979-99. He has been a member of the House of Lords since 1999 and Co-founder and Vice-Chairman of the All Party Parliamentary Group on Africa since 2002. He served as an election monitor in the Democratic Republic of the Congo in 2007.

LORD JONATHAN MARKS is a leading commercial and family barrister practising from Chambers in the Temple in London. Called to the Bar in 1975, he was made Queens Counsel in 1995. He is also a Liberal Democrat member of the House of Lords and is a party spokesman on Justice. His political specialisms are in human rights, justice and constitutional issues.

PROFESSOR HENNING MELBER is Senior Adviser and Director Emeritus of the Dag Hammarskjöld Foundation in Uppsala, which he headed from 2006 to 2012. He was Senior Lecturer in International Relations at Kassel University (1982-1992), Director of the Namibian Economic Policy Research Unit in Windhoek (1992-2000) and Research Director of the Nordic Africa Institute in Uppsala (2000-2006). He is Extraordinary Professor at the University of Pretoria and Research Fellow at the Centre for Africa Studies of the University of the Free State in Bloemfontein.

PROFESSOR NAISON NGOMA is the Vice Chancellor of the Copperbelt University, Zambia, and former Director of its Dag Hammarskjöld Institute of Peace. Professor Ngoma has thirty years experience in management, nationally and internationally, at operational and strategic level in government, universities and international organisations including UN Agencies.

HANS KRISTIAN SIMENSEN is a freelance researcher based in Gothenburg, Sweden with experience in military and civilian aviation including air traffic surveillance and flight logistics. His father had served with the UN in the Congo and in 2006, Simensen started to collect documents from the Congo crises for a proposed digital "Dag Hammarskjöld Peace Broker Archive" for the Bibliotheca Alexandrina. Since 2009 he has been researching the Ndola accident.

DR. SUSAN WILLIAMS is a Senior Fellow at the Institute of Commonwealth Studies, School of Advanced Study, University of London. Her books include Who Killed Hammarskjöld? (Hurst 2011); Colour Bar. The Triumph of Seretse Khama and His Nation (Penguin 2006); The People’s King. The True Story of the Abdication (Penguin 2003); The Iconography of Independence: ‘Freedoms at Midnight’ (Routledge 2009).