(1) This section applies where the Secretary of State considers -

(a) that the provision of extra police services at a gas facility in Scotland is necessary because of a risk of loss of or disruption to the supply of gas connected with it, and

(b) that the loss or disruption would have a serious impact on the United Kingdom or any part of it.

(2) In this section "extra police services" means -

(a) the services of the Ministry of Defence Police provided under an agreement with the Secretary of State for Defence under section 2(2)(e) of the Ministry of Defence Police Act 1987 (c. 4),

(aa) the services of the Civil Nuclear Constabulary provided under section 55A of the Energy Act 2004, or

(b) police services (within the meaning of section 86(9) of the Police and Fire Reform (Scotland) Act 2012) provided under an arrangement under section 86 of the Police and Fire Reform (Scotland) Act 2012 in respect of the gas facility entered into at the request of the Secretary of State by -

(i) the occupier of, or of part of, the facility, and

(ii) the chief constable of the Police Service of Scotland.