Article 15 Defences
Any person who, in the course of a business carried on by him, places on the market or sells by retail, offers or exposes for sale by retail, or supplies in circumstances corresponding to retail sale, any intermediate feed in accordance with a forged veterinary written direction, shall not be guilty of an offence under this Order if, having exercised all due diligence, he believes on reasonable grounds that the veterinary written direction is genuine.