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Darren
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Joined: 11/07/2002 14:36:40
Posts: 23848
Location: Hampshire, UK
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 Posted: Wed Dec 08, 2010 8:19 am Post subject: |
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| mikealder wrote: | | Do you honestly believe a court or the CPS would know the difference between UTC and GMT at any time of the year, |
No, they appointed an expert witness to examine the log file that had been submitted as evidence of innocence.
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Darren Griffin |
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Darren
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Joined: 11/07/2002 14:36:40
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Location: Hampshire, UK
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| Posted: Wed Dec 08, 2010 8:22 am Post subject: |
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| spook51 wrote: | | Follow the link to The Telegraph under 'From other news sites' towards the bottom of the BBC News page for more information. |
I liked there reference to the defendant using a "German" [sic] satnav 
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Darren Griffin |
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Skippy
Pocket GPS Verifier
Joined: 24/06/2003 00:22:12
Posts: 2946
Location: Escaped to the Antipodies! 36.83°S 174.75°E
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| Posted: Wed Dec 08, 2010 9:10 am Post subject: |
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| mikealder wrote: | | Do you honestly believe a court or the CPS would know the difference between UTC and GMT at any time of the year, ask most lawyers what UTC is and they will reply a "Pop Group" - Mike |
This is why they call expert witnesses. 
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Gone fishing! |
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MaFt
Pocket GPS Staff
Joined: Aug 31, 2005
Posts: 15258
Location: Bradford, West Yorkshire
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| Posted: Wed Dec 08, 2010 11:05 am Post subject: |
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| Darren wrote: | | spook51 wrote: | | Follow the link to The Telegraph under 'From other news sites' towards the bottom of the BBC News page for more information. |
I liked there reference to the defendant using a "German" [sic] satnav |
Yes, I noticed that too! I checked back through the thread as I could have sworn it was a Garmin nuvi 660. Then I realised that it was a simple typo from Garmin to German 
MaFt |
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MaFt
Pocket GPS Staff
Joined: Aug 31, 2005
Posts: 15258
Location: Bradford, West Yorkshire
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| Posted: Wed Dec 08, 2010 11:17 am Post subject: |
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Reading this page: http://shallowsky.com/blog/mapping/gpx-timestamps.html
It would appear that the nuvi GPX tracklog adds the timezone to the stamp:
| Code: | Track log points, quite reasonably, have time stamps in "Zulu time" (essentially the same as GMT, give or take some fraction of a second). They look like this:
<trkpt lat="35.289519913" lon="-115.227057561">
<ele>1441.634277</ele>
<time>2010-10-14T17:51:35Z</time>
</trkpt>
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So my guess is that they were using the GPX files rather than the raw NMEA data?
I've not got a nuvi with tracklogging functionality so it's not something I can check. i.e. does it ALWAYS use 'zulu time' or does it change according to your timezone / DST etc?
MaFt |
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MaFt
Pocket GPS Staff
Joined: Aug 31, 2005
Posts: 15258
Location: Bradford, West Yorkshire
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| Posted: Wed Dec 08, 2010 11:28 am Post subject: |
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a bit more: http://www.poi-factory.com/node/29587
| Quote: | I have a Garmin Etrex which does Track log. Since the unit doesn't have a localization feature like the nuvi to set your local time zone, it shows the time in UTC format.
I would suggest to compare the GPS time and your clock and check if there is any time difference.
Here is a portion of the track log from my Etrex:
1963.1494141
2009-09-13T16:38:45Z
Notice the Z at the end of the time which indicate Zulu time.
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perhaps the nuvi, as it has localisation, will add the appropriate timezone to the timestamp?
MaFt |
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Andy_P
Pocket GPS Moderator
Joined: Jun 04, 2005
Posts: 19991
Location: West and Southwest London
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| Posted: Wed Dec 08, 2010 11:45 am Post subject: |
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He should have got you to 'doctor' the file for him, MaFt!
Could be a lucrative little sideline.... |
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Darren
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Joined: 11/07/2002 14:36:40
Posts: 23848
Location: Hampshire, UK
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| Posted: Wed Dec 08, 2010 12:33 pm Post subject: |
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| Andy_P wrote: | He should have got you to 'doctor' the file for him, MaFt!
Could be a lucrative little sideline.... |
Until he is caught for aiding and abetting 
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Darren Griffin |
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spook51
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Joined: Mar 26, 2004
Posts: 548
Location: East Midlands
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| Posted: Wed Dec 08, 2010 1:03 pm Post subject: |
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| Darren wrote: | | Andy_P wrote: | He should have got you to 'doctor' the file for him, MaFt!
Could be a lucrative little sideline.... |
Until he is caught for aiding and abetting |
I wonder if the prosecution have been reading this thread.....  |
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Darren
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Location: Hampshire, UK
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| Posted: Wed Dec 08, 2010 1:12 pm Post subject: |
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No issue if they have, all our advice bears scrutiny. At no point have we given any advice on doctoring data nor would we.
The fact is he has been stupid, and attempting to fool the courts in this way will only ever have one outcome. Simply foolish to even entertain it.
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Darren Griffin |
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BigPerk
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Joined: Sep 06, 2006
Posts: 1618
Location: East Hertfordshire
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| Posted: Wed Dec 08, 2010 1:39 pm Post subject: |
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What I find VERY puzzling is that if the offence was committed in winter, and then all our advice through the spring was clearly pointing out how VERY fragile his defence and case would be with GENUINE GPS data, he then goes and falsfies his data anyway in the summer.  
WHY then was he even bothering to argue his (false) case here anyway??
Either he is an absolute total idiot, or there are two Shauns. Might be interesting to have a post from shaunppl!! 
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David
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Darren
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Joined: 11/07/2002 14:36:40
Posts: 23848
Location: Hampshire, UK
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| Posted: Wed Dec 08, 2010 1:45 pm Post subject: |
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| BigPerk wrote: | | What I find VERY puzzling is that if the offence was committed in winter, |
Winter? It was June? Doesn't change the facts though, that his whole story is rather odd in the light of the court result. Unless he hoped this thread would serve as proof of his innocence as well. It could all have been started as an alibi.
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Darren Griffin |
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BigPerk
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Joined: Sep 06, 2006
Posts: 1618
Location: East Hertfordshire
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| Posted: Wed Dec 08, 2010 1:52 pm Post subject: |
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I thought he committed the offence in the winter (his first post here was in Feb 2009) and did the rerun later before his court appearance in June, but I may have misread it. I'll look again.
EDIT - Ahh ... Got 2009 mixed up with 2010. Everything seems to tie in ok now.
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David
(Navigon 70 Live, Nuvi 360)
Last edited by BigPerk on Wed Dec 08, 2010 2:07 pm; edited 2 times in total |
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Andy_P
Pocket GPS Moderator
Joined: Jun 04, 2005
Posts: 19991
Location: West and Southwest London
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| Posted: Wed Dec 08, 2010 1:58 pm Post subject: |
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| Darren wrote: | | all our advice bears scrutiny. At no point have we given any advice on doctoring data nor would we. |
I suppose in these litigious times I should cover my back (and PGPSW's!) and state what should be obvious.... My suggestion was purely a JOKE, and not to be taken seriously. |
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BigPerk
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Posts: 1618
Location: East Hertfordshire
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| Posted: Wed Dec 08, 2010 2:12 pm Post subject: |
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Perversion of the course of humour?
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David
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