A discussion just came up and I don't have an answer. Wonder if anyone has the knowledge.

The discussion was if you passed a cop on the highway by, say 5 miles over the limits. The cop pulled you over, wrote you up for 10 miles over instead of 5. How can you fight a ticket like that? I sugguested requesting a radar readout, but friends said cops have good judgement on speed and they don't need radar to write you up for speeding. I disagree because that would be a "I said, he said" scenario in court. I am sure the judge will be on the cop's side, but without a readout, how can a citizen prove that he is innocent? What about back then when radar was not widely used? Any idea how to beat this argument?

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