12.—(1) After the completion of a tidal work the Board shall at the outer extremity of that work exhibit every night from sunset to sunrise such lights, if any, and take such other steps, if any, for the prevention of danger to navigation as Trinity House shall from time to time direct.
(2) If the Board fail to comply in any respect with a direction given under this article they 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.