3. Contravention of the general prohibition
(1) A person who contravenes the general prohibition commits a contravention of these Regulations and shall be liable to a fine not exceeding level 6 on the standard fines scale.
(2) In proceedings in respect of a contravention under subsection (1), it is a defence for the person accused of the contravention to show that he took all reasonable precautions and exercised all due diligence to avoid committing the contravention.
(3) An agreement made by a person in the course of carrying on a controlled activity in contravention of the general prohibition shall not, by virtue of such contravention alone, be void or unenforceable.