(1)In any proceedings in Scotland for an offence referred to in subsection (2) below it shall be lawful to convict the accused on the evidence of one witness.
(2)The offence referred to in subsection (1) above is any offence created by or under an enactment and punishable on summary conviction, being an offence committed in respect of a vehicle—
(a)by its being on a road during the hours of darkness as defined by section 82 of the 1972 Act without the lights or reflectors required by law ; or
(b)by its obstructing a road, or waiting, or being left or parked, or being loaded or unloaded, in a road ; or
(c)by the non-payment of a charge made at a street parking place; or
(d)by its being used in contravention of any provision of an order made or having effect as if made under section 1, 6 or 9, or of regulations made or having effect as if made under section 11 of the 1967 Act, being a provision—
(i)as to the route to be followed by vehicles of the class to which that vehicle belongs ; or
(ii)as to roads or parts of carriageways which are not to be used for traffic by such vehicles ; or
(iii)as to the places where such vehicles may not turn so as to face in the opposite direction to that in which they were proceeding or as to the conditions under which such vehicles may so turn ; or
(e)by its being used or kept on a public road within the meaning of the [1971 c. 10.] Vehicles (Excise) Act 1971 without a licence under that Act being exhibited on the vehicle in the manner prescribed under that Act.