(1) If the Commission reasonably believes that a person may have committed or may be committing a relevant contravention, the Commission may authorise the carrying out of an investigation under this section.

(2) The Commission may appoint such and so many persons as it may determine (referred to in this section as "authorised officers") to carry out investigations under this section.

(3) The Commission shall furnish an authorised officer with an authorisation and, when carrying out an investigation under this section, an authorised officer shall, if requested to do so by any person affected by the investigation, produce to the person the authorisation or a copy of it together with a form of personal identification.

(4) An authorised officer may, for the purposes of carrying out an investigation under this section -

(a) require any person to provide any information or explanation which the authorised officer may reasonably require for the purposes of the investigation,

(b) require any person to produce any document or other thing of which the person has control, or to which the person has access, and which the authorised officer may reasonably require for the purposes of the investigation,