109B(1) An authorised officer who has reasonable grounds for suspecting that a person–
(a)is a person falling within subsection (2) or (2A) below, and
(b)has or may have possession of or access to any information about any matter that is relevant for any one or more of the purposes mentioned in section 109A(2) above,
may, by written notice, require that person to provide all such information described in the notice as is information of which he has possession, or to which he has access, and which it is reasonable for the authorised officer to require for a purpose so mentioned.
109B(2) The persons who fall within this subsection are–