10. 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 him by virtue of articles 6, 7 or 8;
(b)without reasonable excuse prevents any other person from complying with any such requirement; or
(c)obstructs any such officer who is exercising any of those powers,
shall be guilty of an offence, and liable–
(i)on summary conviction to a fine not exceeding the statutory maximum; or
(ii)on conviction on indictment to a fine.