Mr. Deya is the Chief Executive Officer of Pan Africa Lawyers Union and an Advocate of the High Court of Kenya. He was previously the CEO of the East Africa Law Society (EALS), and, before that, Deputy CEO of the Law Society of Kenya. He has also worked with the Kenyan Section of the International Commission of Jurists. While at the EALS, he founded the East African Civil Society Organisations’ Forum.

He also chairs the Executive Committees of the Pan African Citizens’ Network (PACIN), formerly known as the Centre for Citizens’ Participation in the African Union (CCP AU) and the International Coalition for the Responsibility to Protect. He is a former Chair of the African Court Coalition and Councillor (and former Secretary) of the African Forum of the International Bar Association. He is also a former member of the Executive Committee of the International Institute of Law Association Chief Executives.

He litigates extensively at the African Court on Human and Peoples’ Rights and the East African Court of Justice. Don has engaged in advocacy with several organs and institutions of the African Union, African Development Bank, African Legal Support Facility, Common Market for Eastern and Southern Africa, International Conference on the Great Lakes Region, Intergovernmental Authority on Development, and the East African Community, amongst others. Mr. Deya also engages the United Nations system and the International Criminal Court.