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Laser Cruise Control & LIDAR - Higher Speed Reading

3 messages,  Last post on Aug 30, 2009 at 2:50 AM

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#1 of 3 Laser Cruise Control & LIDAR - Higher Speed Reading by brensommer Jul 02, 2009 (7:50 am)
Hey there!   I need help! I was recently pulled over for speeding in Fort Worth, Tx. I was in a 60 mph zone and had my laser cruise set on 67. (99% of the time I set it for 5mph over, but I had not adjusted it yet and it was set at 7mph over.)   The problem is that I was pulled over and told I was going 74mph and issued a ticket. He said he clocked me using the LIDAR. I know beyond a shadow of a doubt that I was NOT going 14mph over the speed limit. I haven't had a speeding ticket in over 12 years for good reason.   My question is this: Is it possible that the LIDAR that the policeman was using actually hit my laser shooting out from my van rather than actually hitting my van? Is it possible for my laser to interfere with his laser and cause an incorrect reading?   I've already decided to go to court, if for no other reason than to stand up and say I was not going 14 over the limit. My 9 year-old daughter was in the van with me and I feel it would be a good lesson for her to see her mom stand up for herself. I may still have to pay for the ticket, but I at least want the judge to hear me say I'm not guilty.   Does anyone have any information that may be able to help me?   I just want to say once again, if I was going 14mph over the speed limit, I would admit it. I use my cruise everywhere, everyday to keep me from speeding. My concern is that if there was some kind of interference, it could happen to me - or someone else - again.   BTW, I have a 2008 Toyota Sienna Limited 2WD.   I would appreciate any help! Replies to this message: ateixeira (Jul 29, 2009 8:08 am) yeppers (Aug 30, 2009 2:50 am)
#2 of 3 Re: Laser Cruise Control & LIDAR - Higher Speed Reading [brensommer] by ateixeira Jul 29, 2009 (8:08 am)
Replying to: brensommer (Jul 02, 2009 7:50 am) I doubt it, because the cops aim at a specific surface, often the license plate.   There can be some variance, and 7mph is not a big difference. I'm sure the judge will believe you.   Having said that, it may only reduce your fine slightly. You'd still be guilty of speeding, and still get points.   To be honest, you may be better off going to court and pleading guilty with explanation (then tell him your speed). In most cases if you don't have any points on your license, the judge will toss it out and make you pay only court costs, or at least cut the fine in half (which is the best-case scenario if you say you were doing 7 over).   Go to court, for sure, but see how lenient the judge is on other speeders, and follow their lead if he's letting people with clean driving records off with warnings.   Best of luck. I bet you get off with paying court costs only, maybe some probation.   And yes it can be a valuable lesson for your child, in more ways than one. She will see how wreckless speeders are punished (there will be some of those in the courtroom), plus how citizens can and do fight back in cases like yours.
#3 of 3 Re: Laser Cruise Control & LIDAR - Higher Speed Reading [brensommer] by yeppers Aug 30, 2009 (2:50 am)
Replying to: brensommer (Jul 02, 2009 7:50 am) Ask to see when his LIDAR gun was last calibrated and certified? Lot of time's the police go well beyond the certification time frame and their radar is actually out of calibration.   See if the time frame is within tollerence.   For your laser system to interfere they would both have to be on the same or near the same frequency.   http://www.pbelectronics.com/police_lidar_laser.htm   http://www.pbelectronics.com/radar_certification.htm   See above. Yes they do require calibration.

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