FOI release

Home Office type approval of the LTI 20.20 speedmeter.

We have a received a request under the Freedom of Information Act 2000 for the following: My first point of concern is that related to the…

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We have a received a request under the Freedom of Information Act 2000 for the following:

My first point of concern is that related to the trigonometric principles of cosine. My question to the partnership was ‘are the trigonometric principles of cosine an integral part of the camera?’ Unfortunately they were unable to answer this question. As the photographs I received showed the vehicle travelling at an angle to the camera, I needed a response to confirm whether the indicted speed of the vehicle was the subject of the trigonometric principles of cosine. If so, how was this achieved? If this is integral to the camera, would you kindly confirm what additional information needs to be programmed into the camera to achieve a correct reading?

The second issue relates to the types approval for the test approval. The specific items of concern are the recommendations for use of the camera at the roadside. To ensure accuracy of use of the equipment at the roadside, I believe that use of the camera, in breach of the test procedures recommended, used and approved by the Home Office prior to confirmation of the type approval would invalidate any prosecution for alleged speeding offences.

It would also be greatly appreciated if you could send any recommendation for training requirements necessary for the Police and Partnerships.

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