(b) prior to P’s arrival in the United Kingdom the Foreign, Commonwealth and Development  Office—  (i) has confirmed in writing to the person giving the confirmation referred to in  paragraph (a) that it has received that confirmation, and  (ii) where P is a representative of a foreign country or territory, has then confirmed in  writing to the person giving the confirmation referred to in paragraph (a) that P is  travelling to the United Kingdom to conduct official business with the United  Kingdom and is not required to comply with regulation 9.  (a) “consular courier” means a person who has been provided by the State on behalf of which  they are acting with an official document confirming their status as a consular courier in  accordance with Article 35(5) of the Vienna Convention on Consular Relations of 1963;  (b) “consular post” means any consulate-general, consulate, vice-consulate or consular  agency;  (c) “diplomatic courier” means a person who has been provided by the State on behalf of  which they are acting with an official document confirming their status as a diplomatic  courier in accordance with Article 27(5) of the Vienna Convention on Diplomatic  Relations of 1961;  (d) “G7 event” means—  (i) an event organised by Her Majesty’s Government in connection with the United  Kingdom’s G7 2021 presidency,  (ii) a meeting, connected to an event described in sub-paragraph (a), between  representatives of States, foreign territories or organisations which are represented at  such an event;  (e) “international organisation” means an international organisation accorded privileges and  immunities in the United Kingdom;  (f) “member of a consular post” means a “consular officer”, “consular employee” and  “member of the service staff” as defined in Schedule 1 to the Consular Relations Act  1968( a ), and “head of consular post” has the meaning given in that Schedule;  (g) “member of a diplomatic mission” means the “head of the mission”, “members of the  diplomatic staff”, “members of the administrative and technical staff” and “members of  the service staff” as defined in Schedule 1 to the Diplomatic Privileges Act 1964( b );  (h) “relevant person” means—  (i) where P is to attend or facilitate a G7 event on behalf of a State, a foreign territory or  an organisation, the head of the relevant mission or post, the office representing the  foreign territory in the United Kingdom or the organisation,  (ii) where P is to attend or facilitate a G7 event on their own behalf, P.  (a) required to undertake essential government work related to the United Kingdom border in  the United Kingdom within the period during which they would, but for this paragraph,  have had to self-isolate in accordance with regulation 9; or  (b) undertaking essential government work related to the United Kingdom border outside of  the United Kingdom but—  ( a ) 1968 c. 18. There are amendments but none is relevant.  ( b ) 1964 c. 81. There are amendments but none is relevant.  35 (5) This paragraph is without prejudice to any immunity from jurisdiction or inviolability which  is accorded to any person described in sub-paragraph (1) or (2) under the law of England and  Wales apart from these Regulations.  2. —(1) A Crown servant or government contractor where they are—  (4) For the purposes of this paragraph— 