Human rights — Detention — Detention without trial for security reasons — Justification in emergency — Limitations on power of detention — Whether periods of detention too long — Requirements of necessity and proportionality

War and armed conflict — Occupation — Security powers of occupant — Detention without trial for investigative purposes — Applicable law — Fourth Geneva Convention, 1949 — International Covenant on Civil and Political Rights, 1966 — Hague Regulations on the Laws and Customs of War on Land, 1907 — The law of Israel