States as international persons — Composite and dependent States and territories — Protected States and protectorates — French protectorate over Tunisia — Treaty of Bardo, 1881 (Article 3) — Obligation to protect ruling dynasty — Assassination of heir presumptive — Alleged negligence by police under authority of French Resident — Whether engaging responsibility of French State — Whether justiciable by Conseil d'État — The law of France.

International law in general — Relation to municipal law — Relations with foreign States — Whether justiciable before municipal law courts — Treaty of Bardo, 1881 — French Protectorate in Tunisia — Duty to protect ruling dynasty — Assassination of member — Alleged default by police under authority of French Resident — Whether breach of treaty — Whether justiciable by Conseil d'État — The law of France.