I hope the RoadHawk data could also be used for this, but I guess it will probably have been deleted by the time you find out you've got a ticket.

Twitter: @nickg_uk

Yes probably unless you swap cards each week and retain for a period or use a large card. Wonder what the largest card it will us is?

Darren Griffin

I currently have an 8GB card in my roadhawk, but I understand that it will take 16GB.

OT for this thread so I'll continue discussion on cards etc in the Roadhawk thread here.

Darren Griffin

We all need to be very concerned about this. In most circumstances we are forced to accept the evidence from these cameras, laser, GATSO etc as gospel.

Our only recourse is to question their accuracy. In most cases such defences have failed even where there has been expert evidence that calls into question the accuracy.

Anything we can do as motorists to disprove the data is for the better and if we all had equipment such as the Roadhawk with data that can be offered as evidence then we might just see that they are wrong a lot more often than we realise

Darren Griffin

With GPS on lots of iPhones and smartphones, I'm now wondering if the accuracy of mobiles, gatsos etc will be brought into more doubt due to the number of devices out there that could, in theory, be capturing this data on behalf of the motorist.

Sorry, but I have to ask: "Is there an app for that?"

Gerry
TomTom730T
Cameralert for Android
Brodit ProClip mount

The real problem, which the authorities refuse to accept is that the laser speed gun LTI 20-20 is prone to errors, particularly slippage, because it uses a narrow beam illuminating only a small area of the vehicle being measured. Thus if the beam moves up the windscreen or along the bonnet during the measurement large errors can be induced. The car is a moving target, and unless travelling directly towards the laser gun must be tracked by the operator with considerable accuracy if errors are to be avoided. The Gatso is a wide beam device and does not suffer these errors

The Mail had an interesting article on these guns some time ago - recommended reading.

http://www.dailymail.co.uk/news/article-365563/The-great-speed-gun-scandal.html

I've split the discussion on blackbox hardware etc to a new thread here as it's OT for this news item.

Please feel free to continue discussion of tech in that thread.

Darren Griffin

As a competition shooter I am under no illusion as to how accurate a laser gun is in the hands of anyone,let alone an exited cop who has just had a cup of caffeine laced coffee.
Holding a sight picture on a still target is difficult, on a moving one is almost impossible.
Thats why shotguns are used to hit moving objects and not rifles.
Handguns are even less accurate and holding aim on a target that is moving both forward and up and down at the same time would stress even an Olympic marksman.

Id rather be riding a Motorcycle 4 wheels are the norm Subaru Forester

I did see a documentary about speed cameras a while ago, they talked to the man operating the camera, and he said he had been caught himself.
The camera was in a van and on a stand, so there was no problem in aiming it, you could see what this camera could see and the speed of the vehicles at the time, but it was at his discretion which ones he clicked on.

Brian

I don't own a TV so perhaps miss some of the more educational programmes.
I thought the laser guns were hand held jobs.
Note to self,do some research on the web:-))
Thanks for the info

Id rather be riding a Motorcycle 4 wheels are the norm Subaru Forester