17(1)If, where any thing is delivered up, sold or destroyed under paragraph 16 above, it is held in proceedings taken under this Schedule that the thing was not liable to forfeiture at the time of its seizure, the Commissioners shall, subject to any deduction allowed under sub-paragraph (2) below, on demand by the claimant tender to him—
(a)an amount equal to any sum paid by him under sub-paragraph (a) of that paragraph; or
(b)where they have sold the thing, an amount equal to the proceeds of sale; or
(c)where they have destroyed the thing, an amount equal to the market value of the thing at the time of its seizure.
(2)Where the amount to be tendered under sub-paragraph (1)(a), (b) or (c) above includes any sum on account of any duty or tax chargeable on the thing which had not been paid before its seizure the Commissioners may deduct so much of that amount as represents that duty or tax.
(3)If the claimant accepts any amount tendered to him under sub-paragraph (1) above, he shall not be entitled to maintain any action on account of the seizure, detention, sale or destruction of the thing.
(4)For the purposes of sub-paragraph (1)(c) above, the market value of any thing at the time of its seizure shall be taken to be such amount as the Commissioners and the claimant may agree or, in default of agreement, as may be determined by a referee appointed by the Lord Chancellor (not being an official of any government department), whose decision shall be final and conclusive; and the procedure on any reference to a referee shall be such as may be determined by the referee.