Sch 7 para 17
(1) This paragraph applies to a ship or aircraft which— (a) arrives or is expected to arrive in any place in the United Kingdom (whether from another place in the United Kingdom or from outside the United Kingdom), or (b) leaves or is expected to leave the United Kingdom. (2) If an examining officer gives the owners or agents of a ship or aircraft to which this paragraph applies a written request to provide specified information, the owners or agents shall comply with the request as soon as is reasonably practicable. (3) A request to an owner or agent may relate— (a) to a particular ship or aircraft, (b) to all ships or aircraft of the owner or agent to which this paragraph applies, or (c) to specified ships or aircraft. (4) Information may be specified in a request only if it is of a kind which is prescribed by order of the Secretary of State and which relates— (a) to passengers, (b) to crew, . . . (c) to vehicles belonging to passengers or crew ,or (d) to goods. (5) A passenger or member of the crew on a ship or aircraft shall give the captain any information required for the purpose of enabling the owners or agents to comply with a request under this paragraph. (6) Sub-paragraphs (2) and (5) shall not require the provision of information which is required to be provided under or by virtue of paragraph 27(2) , 27B or 27BA of Schedule 2 to the Immigration Act 1971.