A lawyer by training,a career diplomat, Me. Denis Regis was admitted in 1978, through a competitive process, in the Ministry of Foreign Affairs, where he spent most of his administrative career in both Central and External services with the rank of Attache to the one of Director General. At the Chancellery, Me. Regis was in turn Director of Consular Affairs, of Cultural Affairs and of Political Affairs.
In the External Services, Me. Regis held the position of Minister Counselor at the Embassies of Haiti in Washington, DC and in Ottawa.
Me. Regis led a parallel career as a professor and a researcher at the State University of Haiti (UEH), where he taught Public International Law, Private International Law, International Criminal Law, Diplomatic and Consular Law. He was Dean of the National Institute of Management and International Studies (INAGHE), an autonomous entity of the State University of Haiti.
Me. Regis participated in multiple missions and international conferences on behalf of his country and the United Nations to the Organization of American States, to the Commission on Human Rights of the United Nations (Geneva, Switzerland), to the Association of Caribbean States, to the Hague Conference on Private International Law, to the Joint Franco-Hai’tian Commission (Paris) and to the Sixteenth Session of the International Association of Penal Law (Budapest, Hungary). He is Member of the Permanent Court of Arbitration, Academy of Criminal Justice Sciences (Maryland, USA); he is also Member of the Toussaint Louverture Center for Human Rights (Haiti) and until his appointment as Ambassador, he was Coordinator of the Haitian Coalition for International Criminal Court (CHCPI).
Me. Regis is the founding President of the Center for Diplomatic and International Studies (CEDI), a private institution for higher education he headed until recently.