18.—(1) Any person who–
(a)fails without reasonable excuse to comply with any requirement imposed by a British sea fishery officer under the powers conferred on such officers by article 14 or 15;
(b)without reasonable excuse prevents, or attempts to prevent, any other person from complying with such requirement; or
(c)obstructs any such officer in the exercise of any of those powers or the powers conferred by article 16,
shall be guilty of an offence.
(2) Any person guilty of an offence under paragraph (1) shall be liable–
(a)on summary conviction, to a fine not exceeding the statutory maximum; or
(b)on conviction on indictment, to a fine.