(1)An authorised examiner may at any reasonable hour enter premises where used motor vehicles or trailers are supplied in the course of a business and test and inspect any used motor vehicle or trailer found on the premises for the purpose of ascertaining whether it is in an unroadworthy condition for the purposes of section 75(1) of this Act.
(2)In this section (except paragraph (d) below) references to supply include—
(a)sell,
(b)offer for sale or supply,
(c)expose for sale, and
(d)otherwise keep for sale or supply.
(3)An authorised examiner may at any reasonable hour enter premises where vehicles or vehicle parts of a class prescribed for the purposes of section 63 of this Act are supplied in the course of a business and test and inspect any such vehicle or vehicle part for the purpose of ascertaining whether the vehicle or vehicle part complies with the type approval requirements applicable to a vehicle or vehicle part of that class.
(4)For the purpose of testing a motor vehicle and any trailer drawn by it the authorised examiner may drive it and for the purpose of testing a trailer may draw it with a motor vehicle.
(5)A person who obstructs an authorised examiner acting under this section is guilty of an offence.
(6)In this section “authorised examiner” means a person who may act as an authorised examiner for the purposes of section 67 of this Act; and any such person, other than a constable in uniform, shall produce his authority to act for the purposes of that section if required to do so.
(7)A motor vehicle or trailer shall be treated for the purposes of this section as used if, but only if, it has previously been sold or supplied by retail.