71(1)
Nothing in this Act shall require any private hire vehicle to be equipped with any form of taximeter but no private hire vehicle so equipped shall be used for hire in a controlled district unless such taximeter has been tested and approved by or on behalf of the district council for the district or any other district council by which a vehicle licence in force for the vehicle was issued.
71(2)
Any person who—
(a) tampers with any seal on any taximeter without lawful excuse; or
(b) alters any taximeter with intent to mislead; or
(c) knowingly causes or permits a vehicle of which he is the proprietor to be used in contravention of subsection (1) of this section,
shall be guilty of an offence.