Ernest Marsh wrote:
Training is irrelevant - at all times the video should be examined to ensure the device was being used correctly.
In the case against golfer Colin Montgomery - who would appear to be a serial speeder, the trained operator was shown (eventually) to have been using the LTI outside of the guidelines.
The judge was concerned enough to raise the matter with the Chief Constable.
I have to challenge the comments by Ernest Marsh
1. Training is very relevant, and a legal requirement. If the operator does not have a reasonable understanding of what he/she is doing during these checks and the basic operation of the device then they will make serious mistakes, so it follows that the trainer must be a qualified trainer
2. Looking at the video assists but only if all the pre session chacks have been carried out correctly and recorded.
3. Even if these checks "Appear" correct we cannot be sure as there is no audio recorded and the audio tone, during the alignment checks, is the ONLY way to confirm that the alignment was carried out correctly, or even carried out at all and the device was in the "tt" mode
4. Then we have hand held devices without any recording, all one has in the word of the operator against the word of a motorist
5. In the Montgomerie case the operator was at fault by not operating the equipment as required, however this was only discovered and accepted by the Judge, because CM had enought financial backing to contest the case and get the full session recording, usually denied to ordinary mortals.
6. From the considerable number of recordings, of speeding cases, I have seen and many years experience of aligning pulse measuring equipment, far more complicated that any speed gun, the alignment procedures even correctly carried out do not come up to the standard of accuracy I would require for such a device.
7. As for the annual calibration precedure I do not know of any Quality Control Assessor that would ever accept that and even passable. The best that could be said for the calibration procedure is that it is an acceptable pre calibration check. The list of what the calibration does not check but should check is considerable.
8. Since 1996 there is no record of any device failing its annual calibration, developing a fault or being outside the acceptable parameters. Why do I say this, well if there was a record then all the previous years convictions would have to be re assessed, and this would have attracted massive press coverage. So what is correct no devices have failed or no devices have been recorded as failed and but adjusted on the QT?
Tim