reg 64 Obligations of payment service providers
(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (2) A payment service provider must ensure that it is able ... to respond fully and rapidly to enquiries from a person specified in paragraph (3) concerning any of the information required by or under the funds transfer regulation. (3) The persons specified in this paragraph are— (a) financial investigators accredited under section 3 of the Proceeds of Crime Act 2002 (accreditation and training) ; (b) persons acting on behalf of the Scottish Ministers in their capacity as an enforcement authority under that Act; and (c) constables or equivalent officers of any law enforcement authority.