8.—(1) For any of the purposes mentioned in paragraph (2), the chief inspector may, by notice (“an information notice”) served on an operator or the operator of an associated gasification plant, require that person to furnish to the chief inspector such information as is stated in the notice, in such form and within such period following service of the notice or at such time as is so stated.
(2) The purposes are—
(a)investigating whether or not the operator has breached the emissions limit duty;
(b)investigating whether or not an operator has failed to comply with either or both of the duties in regulations 4 and 6;
(c)investigating whether a complete CCS system is ready for use; and
(d)investigating any of the following in relation to an associated gasification plant, for the purposes of calculating the emissions of a relevant fossil fuel plant—
(i)the carbon dioxide emissions of the associated gasification plant; and
(ii)the amount of fuel produced by the associated gasification plant and used by a relevant fossil fuel plant.