Thanks for your feedback everyone - very much appreciated! So I can go ahead and strike a sweet deal with the prosecutor (not knowing whether the officer is going to show up or not). But eventually, if the officer doesn't show up, do they have to drop the charges or can they still hold me to the gui...

Thanks for your response. So there's no way of finding out if the officer has shown up until I plead not guilty and trial has started...?
Is it usual for them to amend charges where ticket was issued for a reduced speed?

Forgot to mention, I am a careful driver and have a completely clean record for the last 10 years (and I'm trying to keep it that way). If I can be assured that the charge is not being amended, I'd want to contest and make sure I was actually clocked at that speed (just for my satisfaction - I reall...

I'm contesting a speeding ticket which has already been reduced to no demerit points and have a court hearing coming soon. Now I'm afraid that if I challenge this in court, there is a possibility that they may amend the charge and if I lose, I'll end up with demerit points. I certainly don't want to...