Safe Speed Forums

Good heavens.

Limk to The Sun

_________________
Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.

Good for highlighting the ludicrous and unjust inaccuracies of the current crop of speed-measurement devices in use, bad that he wants them to be used for speed enforcement!

With high capacity flash memory cards becoming cheaper by the day, do you suppose a GPS log of a segment of your journey would be similarly probative?

Members should be aware of the same subject discussed in the Clubhouse because of copyright news material: http://www.safespeed.org.uk/forum/viewtopic.php?t=15926

But it certainly looks as if the Current Bun got the story first.

It should be in loads of papers tomorrow.

_________________
Paul Smith
Our scrap speed cameras petition got over 28,000 sigs
The Safe Speed campaign demands a return to intelligent road safety

Methinks that the "Boffin" doesn't understand the difference between Accuracy and precision - and how he got six decimal places past the magistrates (unless they are totally stupid ) beats me. He would have to be driving in a bubble chamber or something!!!

mb

To be fair, I'd rate it as more likely that the Sun journalist didn't understand.

_________________
Paul Smith
Our scrap speed cameras petition got over 28,000 sigs
The Safe Speed campaign demands a return to intelligent road safety

Busy guy, Dr Tann: http://www.vbay.eu/peoplesmap.htm

I understand that there are devices available for about £400 that log the speed of your car throughout any given journey. They do work on GPS and do not log an average speed but the actual speed picked up by the GPS signal. They are also I believed linked to tracker system for when your car is stolen.

I am also sure that one has been used in evidence in a court. Not sure if it was USA or here.

A search for these under GPS devices will show them up.

They can also be monitored in real time on a laptop showing the road you are on .

Regards

I guess that i should have included a bi of a sarky smiley for Mr Tann, because he isn't that daft - after all, if his "invention" was to be used for some satellite controlled congestion charge for instance, he would be quids-in

mb
p.s. a 1 metre positional resolution (as per first link) does not equal a six-digit accuracy speed measurement does it - indeed the link has a PDF with SEVEN decimal place speed readings? Hence my accuracy and precision post above - i think that he is talking bollox!

Looking at this - the facility exists to read the output from vehicle ABS sensors ,via the fault port. Just how accurate is this info ?

_________________
lets bring sanity back to speed limits.
Drivers are like donkeys -they respond best to a carrot, not a stick .Road safety experts are like Asses - best kept covered up ,or sat on

Must type faster, 'cos jomukuk beat me to one of my links

mb

Not necessarily, he could be using Doppler Shift from the GPS RF carrier signals to calculate exact velocity – I’ve heard that some of the better systems do exactly that.

_________________
Views expressed are personal opinions and are not necessarily shared by the Safe Speed campaign

As accurate as the assumption of the circumference of the tyres.

_________________
Andrew.

...and the degree of sheel slip!

Basically, not that accurate. They are OK for speedometer readings (10%+2.5mph) and are almost certainly well within that but not exceptionally accurate. I'd guess at about +/- 2.5%

I am sure you won't want to hear the truth as it will get in the way of your story, but here it is anyway.

The officer who would have been needed to give evidence in court has retired. Without him the CPS could not prove their case and offered no evidence. The JPS must be clairvoyant rather than stupid, as they were "flabbergasted" by evidence that wasn't presented.
So the device and the theory behind it have not been tested in court. As far as I am aware it hasn't actually been tested by any independent authority.
The inventor says it works. He intends to sell the thing and make a fortune from it.


As you seem to be willing to believe him without any evidence can ask if you would like to help me gain access to a large sum of money held in an overseas bank. I just need you to send me £500 cash and I will be in contact about your profit.

I'm seriously curious... Where did this information come from exactly?

_________________
Paul Smith
Our scrap speed cameras petition got over 28,000 sigs
The Safe Speed campaign demands a return to intelligent road safety

How does that work then?

I'd have thought that surely a recently retired PC would be expected to continue to attend court in support of any cases he was previously involved in? Otherwise there would be no point in him being employed in the period running up to his retirement, as any evidence he collects is worthless should he then retire before the case comes to court.

To me it sounds more like a stock excuse put forward by the CPS in order to quietly drop an awkward case without establishing any sort of precedent or losing face.

(The £500 cheque is in the post.

Shame about the strike.... )

_________________
CSCP Latin for beginners...
Ticketo ergo sum : I scam therefore I am!

Essentially, I'm thinking exactly what JT articulated, what if the officer is supposed to be giving evidence vital to convicting a rapist or murderer? Sorry, he just retired?

Bullfaeces!

no doubt the CPS will come out with the old excuse "not in the public interest to pursue the case"

great publicity though

Prescisely!..... It has been used in MANY worse cases than THIS!......In the real meaning of the the words: "It's a COP OUT!".......a Get out of Jail ticket for the boys in blue! It only happens in Russia does it? Oh No it doesn't!



In short!...........CORRUPTION!

At the highest level...

The question of exactly what duties a person nearing retirement or about to change jobs should do is always difficult. We currently have a very senior doctor doing work well below his status, because in mental health it can take a long time to get to know a patient well enough to even make a diagnosis, so there is no point in him taking on that sort of case when he has a just a few weeks to go. A surgeon, by contrast, would probably be operating right up to the last minute.

In the case of police officers it depends on the individual case and officer. I know of one who came back from Australia - at public expense - to give evidence in a rape case. His evidence wasn't really necessary and could have been agreed, but the defence found out he had joined the NSW police and hoped he would refuse to travel.

Less serious cases are occasionally dropped because the officer is so far away the cost can't be justified. Sometime retired officers refuse to attend, in which case whoever wants to call him or her can ask for a witness summons to compel attendance. They rarely get one, in magistrates courts at least, because the infringment of liberty on the part of the witness has to be balanced against the seriousness of the case. There is also the fact that compelled witnesses are not usually much help.

Not so much bullfaeces as common sense really.