Aliens — Refugees — Refugee status — Grounds for denial — Acts contrary to the purposes and principles of the United Nations — Geneva Convention relating to the Status of Refugees, 1951, Article 1(F) (c) — Former Head of State — Scope of responsibility for human rights violations committed whilst he was President — Whether justifying denial of refugee status — Wife of former Head of State — Whether her fear of persecution based exclusively on human rights violations committed whilst her husband was President — Whether such circumstances justifying denial of her refugee status — The law of France