9.—(1) The Company must at or near a relevant work during the whole time of the construction, alteration, replacement, relaying or reconstruction thereof exhibit every night from sunset to sunrise such lights, if any, and take such other steps for the prevention of danger to navigation as Trinity House may from time to time direct.
(2) If the Company fails to comply in any respect with a direction given under this article, it will be guilty of an offence and liable on summary conviction to a fine and on conviction on indictment to a fine.
(3) It will be a defence for the Company to prove that all due diligence was used to secure compliance with any such direction.