Ian snip snip
It is important to recognise that a conviction for careless driving should not be dependent upon the careless driving causing a rest. Sadly when it comes to convicting a police officer for careless driving it usually takes a rest before a court will consider driving standards to have been criminally negligent. The WPC in the case referred to above was found to be careless because she failed to adjust her speed to an appropriate speed for the conditions. Her recorded speed (in car Navman I suspect) was 62mph in a 30 limit with blue lights and possibly a siren in use at the time, that conviction demonstrates that for the policeman sentence he should expect is a £1000 ban and a 15 month disqualification.
Cutting Up WhyHere's is an interesting experiment that you could try. Find a quiet road with multiple lanes in your direction...
However I suspect that the court will once again be bamboozled by references to training runs and the "expert" nature of the driver. That defence should be set aside because the driver in question did not file a training plan, risk buttessment nor yet notify his superiors of his intention. That is, in simple terms, he was "joyriding". If I were his superior I would also be considering charges of taking and driving away.
