(1) The Commission by written notice may require a person to attend before the Commission, at a reasonable time and place, to answer questions if the Commission reasonably believes that—
(a) the person has information that is relevant to an investigation; and
(b) the information is necessary for the conduct of the investigation.
(2) A person who is required under this section to attend before the Commission—
(a) is entitled to be paid a reasonable sum for the person's attendance; and
(b) is entitled to have a legal or personal representative present.