Aliens — Refugees — Criteria for refugee status — Duty of non-refoulement — Well-founded fear of persecution — Applicant claiming threat to life or freedom on account of political opinions if returned to Algeria — Applicant associated with movement seeking to overthrow the Government of Algeria — Concept of a “serious non-political crime” — Definition — Crime motivated by political considerations but indiscriminate in character — Whether non-political — Acts of terrorism — Geneva Convention relating to the Status of Refugees, 1951, Article 1F(b)

War and armed conflict — Terrorism — Concept of terrorism in international law — Definition — Convention for the Prevention and Punishment of Terrorism, 1937 — Contemporary relevance — Conflict in Algeria — Attacks conducted using indiscriminate means — Whether terrorist offences — Whether “serious non-political crimes” — The law of England