You get asked for ID and all the other paperwork. The cop does identify you as the driver of the vehicle and you get handed your speeding ticket. The disclosure notes say when and how the cop car and device where calibrated, time, location, speed, and sometimes they do write down the weather status at the time of the offence. The cop is not there and what are you going to bring against them? Wasn't me ? If the justice of the peace (they are not judges) says ok, pending new evidence or whatever they say and come back on the this court date and the cop does come in and identifies you as the suspect, then you go down the drain for many other offences, like...i dont know, perjury? What are you going to say, wasnt my car? somebody stole my ID and my car and i didn't declare it stolen and that person looks like me?
I wasnt going that fast may be be another excuse, however, most of the speeding tickets I know about do come reduced and the officers do put the big R on it.
My speedometer was wrong? Good for you, here is the reduced ticket, next. Talk to the dealer and this becomes a matter between you and the manufacturer.
When there is sufficient credible evidence against you, sometimes you have to swallow it and take it like a man.
ii) Prosecutor (sometimes called “the Crown”): The prosecutor is the person with the authority to prosecute the offence. It is the prosecutor’s responsibility to prove that you committed the offence with which you are charged.
If the officer does not appear on your trial date, the prosecution may ask for an adjournment from the court to get a later trial date so the officer can have a chance to show up.
It will be up to the discretion of the justice of the peace whether or not to grant the adjournment, and they will base their decision on the officer's reason for not being present. If the officer has a good reason for not being there, it is likely that the trial will just be pushed back to a later date, and there will still be opportunity for you to be convicted and face ticket fines.
and all this goes back to square one, what is your defense now?