The officer that wrote your speeding ticket is looking through crosshairs on the Laser Gun. He didn't just pick you out of the blue, your vehicle had a "visual history" well before he pulled the trigger. Training teaches him/her to recognize speed with a visual estimate first and then supports his estimate with a display from a doppler, vascar or laser device. They can write you a ticket on the visual estimate only, but they usually don't. Supporting information definately helps their case. Your not going to fool them with a line of questioning. They have done this before.
If you show up at trial with your mail order defense kit, you will be disappointed with the results. The judge will not entertain any legal issues relative to the accuracy of speed supporting devices. There is much case law supporting those issues. If you want to make a case on that issue you will have to file in a higher court. Read more $$$$$$$$$$$...alot more.
So back to the bottom line....show up at court when the assistant District Attorney is their and ask to talk to him/her, write a nice letter to the judge owning up to the fact that you were speeding or higher an attorney to do the same thing. Take your lumps.
On another note...Richard commented that Radar only gives a good reading at right angles. In reality Radar works on the cosine effect, and a right angle is 90 degrees. The cosine of 90 is ZERO. Radar works best straight on the target, either coming or going...I think he is mistaken.
tdowling
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