20. Where a person provides information to the Commissioner pursuant to paragraph (1)(a) of regulation 8 or attends before the Commissioner pursuant to regulation 9, the Commissioner may, if he or she thinks fit, pay to that person—
(a)Sums in respect of expenses properly incurred by the person, and
(b)Allowances by way of compensation for the loss of their time,
in accordance with such scales, and subject to such conditions, as may be determined by the Commissioner.