20 minutes to write it up ? I would love to know where you got this from 
Ex father in law (QC) used this point amongst other minor niggles, to permanently wipe the smug arrogance from a "traffic" who expected his word to be gospel.
Impractical, I know before you start, but enough for a real brief to get his teeth into.
Even his fellow officers who were in to watch, were grinning as we exited stage left with a not proven and cost's awarded for a 3 figure speeding
He was even asked to stay after we left, presumably for a rollicking on expected standards
Pity the poor fella he got next time though

Sorry to threadjack Mark, and good luck