The Health Protection (Coronavirus, International Travel) (England) Regulations 2020

13.—(1) A Crown servant or government contractor who is—

(a) required to undertake essential policing or essential government work in the United Kingdom within 14 days of their arrival,

(b) undertaking essential policing or essential government work outside of the United Kingdom but—

(i) is required to return to the United Kingdom temporarily,

(ii) will thereafter depart to undertake essential policing or essential government work outside of the United Kingdom, or

(c) who is conducting bi-lateral or multilateral discussions with another state or international organisation.

(2) For the purposes of sub-paragraph (1)—

(a) “Crown servant” has the meaning given in section 12(1)(a) to (e) of the Official Secrets Act 1989,

(b) “essential government work” means work which has been designated as such by the relevant Department or employer, and includes, in particular, work related to national security, the work of the National Crime Agency in pursuance of its statutory functions, immigration, the coronavirus disease and any other crisis response, but does not include work of the description in paragraph 2 of Part 1 of this Schedule,

(c) “essential policing” means policing which has been designated as such on behalf of the relevant chief officer or chief constable,

(d) “government contractor” has the meaning given in section 12(2) of the Official Secrets Act 1989.