“(1) A person who drives a motor vehicle on a road at a speed exceeding a limit imposed by or under any enactment to which this section applies shall be guilty of an offence. (2) A person prosecuted for such an offence shall not be liable to be convicted solely on the evidence of one witness to the effect that, in the opinion of the witness, the person prosecuted was driving the vehicle at a speed exceeding a specified limit.”
“A record produced or a measurement made by a prescribed device shall not be admissible as evidence of a fact relevant to proceedings for an offence to which this section applies unless (a) the device is of a type approved by the Secretary of State, and (b) any conditions subject to which the approval was given are satisfied.” (a) the device is of a type approved by the Secretary of State, and (b) any conditions subject to which the approval was given are satisfied.”
“In this section “prescribed device” means a device of a description specified in an order made by the Secretary of State.”
“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.”
“A device designed or adapted for measuring by radar the speed of motor vehicles is a prescribed device for the purposes ofsection 20 of the Road Traffic Offenders Act 1988 .”
“The following devices are prescribed devices for the purposes ofsection 20 of the Road Traffic Offenders Act 1988 - … (b) a device designed or adapted for recording a measurement of the speed of motor vehicles activated by means of a light beam or beams.” … (b) a device designed or adapted for recording a measurement of the speed of motor vehicles activated by means of a light beam or beams.”
“There is thus a distinction between the expressions, “prescribed device” in (4), that referring to what we might refer to as “Stage 1” of the process, namely the generic prescription by way of SI and “type approved” referring to “Stage 2”, namely the approval of the device by the Secretary of State. This reading of the section is supported by an analysis of the phrases “prescribed device” in (4) and “device of the type” in (5) referring to approval subject to conditions. It is plain, in our judgment, that “prescribed device” refers to Stage 1 and “device of a type” refers to Stage 2.”
“As I see it, this section connotes a two stage process. Generically (and this has to be approved by Parliament in the form of a statutory instrument) a description has to be specified in an order. Once that is done as a first stage then the Secretary of State may then as a second stage approve the type in question. So one goes from the general, in the sense of the specified description, to the specific, in the sense of an approved type. That makes perfectly good sense. It is, in fact, no departure in any significant way from that which existed under the previous legislation, save only in this respect: Parliament has now taken upon itself at least to wish to sanction the actual description of the device in question, in respect of which the Secretary of State may thereafter issue an approval as to type.”
“Whilst it may be said that the process of capture of the vehicle speed is initiated by the operator of the device pulling the trigger, it is obvious that the reading itself is initiated and completely dependant upon the light beams emitted from and received by the device and we have no hesitation in finding that it is a device which is “a device designed or adapted for recording a measurement of the speed of motor vehicles by means of a light beam or beams”.”