The FCA or the PRA may by notice in writing require any person who was, immediately before commencement, a recognised professional body to furnish it with information -

(a) which relates to -

(i) investment business carried on before commencement by a person who held a certificate issued by that body for the purposes of Part I of the Financial Services Act; or

(ii) the regulation or supervision of that investment business; and

(b) which that regulator reasonably requires for the exercise of functions conferred on it by or under the Act.