Proof against NIPs and scameras
Discussion
Alright, I admit, false pretences to get you lot in here.
However, now you are here....
Reading the scammed in North Wales thread about his Brother having a GPS trace that was not admissible as evidence, how many of us would actually willingly carry an admissible device if:
It didnt belong to the Govt
You only had to produce traces from the period in question
You could choose not to produce the trace.
I'm undecided, personally, but we are going to get there courtesy of the DVLA before 2012..
However, now you are here....
Reading the scammed in North Wales thread about his Brother having a GPS trace that was not admissible as evidence, how many of us would actually willingly carry an admissible device if:
It didnt belong to the Govt
You only had to produce traces from the period in question
You could choose not to produce the trace.
I'm undecided, personally, but we are going to get there courtesy of the DVLA before 2012..
I thought about this sort of device when Mrs LongQ was done a few years ago. But when I looked into her case I realised that the 'instant' reading was going to be impossible to counter economically.
She was recorded at 40 in a 30. We saw the video and that was what appeared on screen and for the 2 cars in front of her.
We had 2 frames from the video - one near the point of reading and one later to get the plate. Knowing exactly where the camnera was I could triangulate the duistances and calcualted that, plus or minus 1 mph for max possible error on distances, she averaged 31 mph over the distance and said the speedo showed 30.
But it would be possible to claim that the car could decelerate from 40 to 30 in a very short distance before still averaging 31mph over the distance between the two shots.
Even with a recording device you would have proglems. The typical best update frequency is every second with a 1 second latency possible on readings. Interesting but not accurate enough to guarantee that you were not travelling at the recorded speed for the fraction of a second required to take the speed measurement.
You could go for a vehicle testing rig and get an updated reading every tenth of a second - but it would cost a few thousand (back then it did), would have memory for a very short recording time at that rate of capture and would still be inadmissible.
The largest memory capacity I couold find allowed 210,000 readings. So 210,000 seconds (not sure what happened when stationary) ar a could of days. You would need to download and store the file every couple of days in case a NIP was winging its way to you. Marginally practical really.
Heads they win, tails you lose.
But it would be interesting to try and push the point home - if it wasn't for the percieved support such an action would give to the black box spy concept the EU wishes to enforce. Orwell was right.
She was recorded at 40 in a 30. We saw the video and that was what appeared on screen and for the 2 cars in front of her.
We had 2 frames from the video - one near the point of reading and one later to get the plate. Knowing exactly where the camnera was I could triangulate the duistances and calcualted that, plus or minus 1 mph for max possible error on distances, she averaged 31 mph over the distance and said the speedo showed 30.
But it would be possible to claim that the car could decelerate from 40 to 30 in a very short distance before still averaging 31mph over the distance between the two shots.
Even with a recording device you would have proglems. The typical best update frequency is every second with a 1 second latency possible on readings. Interesting but not accurate enough to guarantee that you were not travelling at the recorded speed for the fraction of a second required to take the speed measurement.
You could go for a vehicle testing rig and get an updated reading every tenth of a second - but it would cost a few thousand (back then it did), would have memory for a very short recording time at that rate of capture and would still be inadmissible.
The largest memory capacity I couold find allowed 210,000 readings. So 210,000 seconds (not sure what happened when stationary) ar a could of days. You would need to download and store the file every couple of days in case a NIP was winging its way to you. Marginally practical really.
Heads they win, tails you lose.
But it would be interesting to try and push the point home - if it wasn't for the percieved support such an action would give to the black box spy concept the EU wishes to enforce. Orwell was right.
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