Habeas Corpus — Immigration Control Ordinance, section 5 (1) (I,), 9 — Defence (Admission of Women and Children) Regulations, 1940. Regulation 3 (c) - Prohibited Jnimigrant — Deportation Order — Whether adopted child a "child for purposes of the Regulations — Immigration officer, revocability of decisions by —Affidavits must state source of information and belief.