Dashcam video with GPS speed imprint - court date soon...
This is my first post at this forum - go easy on me...
Does anyone know of any precedent in US (traffic) court where a defendant was able to challenge a laser-gun citation with GPS speed (on video)? I've read the horrible outcome of 96transam, but I think my situation is quite different.
Here's where I'm going with this:
I have a dash-cam and DVR that records my windshield view whenever my vehicle is in motion. Using a video overlay box, I imprint the GPS heading and speed on the recorded video. One of the reasons for the entire setup (among others) was to be able to challenge any law enforcement claims of speeding. I've only had two speeding tickets during my 20+ driving year career - so don't get any ideas ;)
As (bad) luck would have it, just two months after the installation of the camera/GPS package, I was pulled over by our my local (Florida, County) Sheriff. He claimed I was driving 72 MPH in a 55 MPH zone. I quickly reviewed the video with the officer (who commented how 'cool' my system was) - and found that my GPS recorded speed was between 68.3 and 68.5 MPH. The officer insisted that he "tested" his laser gun every morning, and refused to alter the citation.
Mind you, I WAS speeding - and I do not contest that. However, the 4MPH difference between 13MPH and 17MPH is the difference between a minor and MAJOR speeding violation - something over which the insurance companies sit up and take notice. 15+MPH is MAJOR.
I will contest the ticket in court, and I intend on brining my video with me for the judge to see for himself. Obviously there will be certification/alteration issues, but assuming the judge allows the video, I will need to provide evidence that GPS technology is accurate - at least as accurate (if not more) than any stationary Doppler based equipment (laser/radar).
I've searched Google high and low looking for something like this, but apparently, I'm the only anal/paranoid person who's every a) installed such a system, and b) tried to prove laser isn't as accurate as GPS.
That's where I need mp3Car's help. Does anyone how to find out what the most effective way is to verify accuracy?
I'm using an older Gamin eTrex 12 channel hand held receiver. I also have a SIRF III bluetooth GPS receiver that I use with my DELL x51v - and when compared side to side, they're dead on - to the tenth of a mile.
Short of hiring an off-duty cop to validate the accuracy, I really don't know what else to do.
Would be open to any ideas.
Now that the court date is over, I am not concerned about the state finding me. I'm now openly hosting the video here:
You can see the cop at 08:09:09 on the right side of the road. If anyone wants to 'host' this video for me, it would help. My FTP server is constantly under hack attacks, and I've filtered allowable IP addresses pretty heavily. I'd upload it here, but asf files are not permitted.
You may need to install an audio code for your video player to be able to play correctly.