9. In any proceedings for an offence under these Regulations, it shall be a defence for the person charged to prove—
(a)that the food in respect of which the offence is alleged to have been committed was intended for export to a country which has legislation analogous to these Regulations and that it complies with that legislation; and
(b)in the case of export to a member State of food to which Regulation 1139/98 or Regulation 50/2000 applies, that the legislation complies with the provisions of Regulation 1139/98 or Regulation 50/2000, as appropriate, as read with Directive 79/112.