13.—(1) After completion of a tidal work the Board shall at the outer extremity thereof every night from sunset to sunrise exhibit such lights, if any, and take such other steps for the prevention of danger to navigation as the Commissioners of Northern Lighthouses shall from time to time direct.
(2) If the Board fails to comply in any respect with a direction given under this article the Board shall be guilty of an offence and liable on summary conviction to a fine not exceeding the statutory maximum and on conviction on indictment to a fine.