The Secretary of State may by regulations provide for the obtaining by registered persons who are in the course of selling registration plates of information of a prescribed description from their prospective purchasers before the completion of the sale.

Regulations under this section may specify provisions of the regulations as provisions to which subsection (3) applies.

A person who contravenes any provision to which this subsection applies shall be guilty of an offence and liable on summary conviction to a fine not exceeding level 3 on the standard scale.

In proceedings for an offence under subsection (3) it shall be a defence for the accused to show that he took all reasonable steps and exercised all due diligence to avoid committing the offence.