"On the prosecution of a person for any speeding offence, evidence of the measurement of any speed by a device designed or adapted for measuring by radar the speed of motor vehicles shall not be admissible unless the device is of a type approved by the Secretary of State."
"(1) Evidence (which in Scotland shall be sufficient evidence) of a fact relevant to proceedings for an offence to which this section applies may be given by the production of -- (a) a record produced by a prescribed device, and (b) (in the same or another document) a certificate as to the circumstances in which the record was produced signed by a constable or by a person authorised by or on behalf of the chief officer of police for the police area in which the offence is alleged to have been committed; but subject to the following provisions of this section."
"This section applies to . . . [I can pass over the various offences specified and for the purposes of this case refer only to subsection (e)] (e) an offence undersection 36(1) of the Road Traffic Act 1988 consisting in the failure to comply with an indication given by a light signal that vehicular traffic is not to proceed."
"(9) In this section 'prescribed device' means device of a description specified in an order made by the Secretary of State. (10) The powers to make orders under subsections (3) and (9) above shall be exercisable by statutory instrument, which shall be subject to annulment in pursuance of a resolution of either House of Parliament."
"In exercise of the powers conferred upon me by section 20(4) and (5) of theRoad Traffic Offenders Act 1988 (Speeding Offences etc: admissibility of certain evidence) I, the Rt Hon Kenneth Clarke, one of Her Majesty's Principal Secretaries of State, having prescribed for the purposes of that section a device designed or adapted for recording by photographic or other image recording means the position of motor vehicles in relation to light signals do hereby approve as from1st January 1993 for the purpose of detection of offences specified in section 20(2)(e) only the two types of devices known as the GATSOMETER BV TYPE 36 manufactured by GATSOMETER BV and . . . [and then it identifies another particular device]."
"This is clear beyond a peradventure, it is submitted -- before it can [be] used any device must be of a type prescribed by the Secretary of State, specified (a generic order clearly will not do) in a statutory instrument and laid before Parliament. This has not been done in respect of the Gatso Type 36 and accordingly it has [not] been prescribed and may not be used at any traffic light controlled junction on a British road to gather evidence. The purported approval of the Type 36 on17th December 1992 by the Secretary of State . . . was not and does not purport to be a statutory instrument."
"'Prescribed device' means device of a description and type specified in an order made by the Secretary of State"
"Was I correct to find that the Gatsometer type 36 device was an approved device in accordance withsection 20 of the Road Traffic Offenders Act 1988 as amended?"