The circumstances referred to in Regulation 4 are the following -

(a) the relevant information relates to a person who is, or persons who are, carried or to be carried by the sea carrier on a voyage where the passenger ship concerned -

(i) departs from the State and arrives in the United Kingdom, or

(ii) departs from the United Kingdom and arrives in the State, and

(b) the disclosure concerned has been requested by the Home Secretary.