11.—(1) A person shall be guilty of an offence if, without reasonable excuse, proof of which shall lie on him –
(a)he contravenes or fails to comply with Article 3; or
(b)he contravenes or fails to comply with a provision or condition of a notice served under this Order or a licence granted under Article 26A of the principal Order as applied for the purposes of this Order by Article 7; or
(c)he intentionally obstructs an inspector or any person authorised by an inspector in the exercise of his powers given by or under this Order.
(2) A person guilty of an offence under this article shall be liable on summary conviction to a fine not exceeding level 5 on the standard scale.