Bloody hell Skull...have you been watching Matthew McConaughey's summing up as "Jake Brigance" in the film "A time to Kill" with Samuel L Jackson...because your summing up above, with attempted 'curve ball', was spookily similar.
Taking your analogy a little further, relating to your question,
"What credible evidence should they base their decision on?" (as to whether to remove the driver's licence)...there would clearly be enough reason for a LA or Police to investigate any allegations and if no evidence was found, you would hope and pray that the truth would win the day.
I note that in your cleverly constructed version above however, you say "The police can't find the kiddie porn anywhere"...illustrating a level of compliance, which is somewhat different to your case.
What would definitely be a big mistake, would be for the said driver to "throw his toys out of the pram" and refuse to even answer any questions or co-operate with officials.
Your argument should have been to correct mistakes within a system that might yield an unfair outcome...not to "throw the baby out with the bath water", so to speak. Another intention, perhaps, might be to ensure that if anyone is proven to be lying or spiteful in any (false) claim made, that serious punishments would be given to them, which would act as a deterrent to lies.
Instead, it might be argued that, to use another driving analogy, even if you're completely innocent, you've acted like someone who refuses a roadside breath test because you don't like the attitude of the officer. You might not have had a drink, but not providing a sample would also carry a ban.
Maybe, on reflection, you could have fought this a better way Garry...but then again, I neither expect you to agree, or admit this.
