• “foreign waters” means the sea and other waters within the seaward limits of the territorial sea adjacent to any relevant territory or any State other than the United Kingdom;

• “international waters” means waters beyond the territorial sea of the United Kingdom or of any other State or relevant territory;

• “Part A1 powers” means the powers set out in Part A1 of Schedule 4A;

• “relevant offence” means—

  1. a

     an offence under section 24(A1), (B1), (D1) or (E1), 24B, 25 or 25A,

  2. b

     an offence under section 25B to the extent that the section continues to apply by virtue of regulation 5(7) of the Immigration and Social Security Co-ordination (EU Withdrawal) Act 2020 (Consequential, Saving, Transitional and Transitory Provisions) (EU Exit) Regulations 2020 (S.I. 2020/1309),

  3. c

     an offence under section 21 of the Immigration, Asylum and Nationality Act 2006, or

  4. d

     an offence under section 1 of the Criminal Attempts Act 1981 or Article 3 of the Criminal Attempts and Conspiracy (Northern Ireland) Order 1983 (S.I. 1983/1120 (N.I. 13)), or in Scotland at common law, of attempting to commit an offence mentioned in paragraph (a) to (c);”, and

• “United Kingdom waters” means the sea and other waters within the seaward limits of the United Kingdom’s territorial sea;

• “ship” includes—

  1. a

     every description of vessel (including a hovercraft), and

  2. b

     any other structure (whether with or without means of propulsion) constructed or used to carry persons, goods, plant or machinery by water;