I suggest you read;
http://www.roadsense.com.au/fightthatticket.html
You can apply to go to court to fight your ticket, and cancel your court appearance later if you decide not to go ahead with it (Pay a summons fee of $70)
There are other conditions that can be used to fight your ticket which I didn't find on that site;
If the Radar was operating in the rain/fog/other conditions
If there were other cars in view of the radar when you were pulled over. (Draw diagrams to show where the other cars were in relation to you and the radar if you're using this is your defence)
If the radar cop was hiding, or if there were other obstacles in the path between you and the radar cop.
Check the ticket for inconsistencies, if the cop put the wrong date or time on the ticket, you can get off on a technicality.
If the cop doesn't show up in court on the day you're meant to appear, I've been told you get the ticket cancelled.
An excerpt from the site.
* "CAMERAS are not to be set up on bends.
* OPERATORS must not camouflage or disguise the cameras in a way that could lead to a public perception of "sly operations".
* CAMERAS can be used on a downhill road only if the road has a significant history of speed-related accidents.
* TOLERANCE levels, where motorists can travel over the speed limit without being fined, are flexible.
* POLICE book so many people to reinforce the message that it is not worth the risk to speed.
* THE locations of fixed speed cameras are chosen to maximise the number of people who can be caught speeding.
* CAMERAS must not be set up within 200m of a change to the speed zone.
* CAMERAS can be used within 200m of a change to the zone in a children's crossing area or a school zone with prior approval of senior police."
The book also states. "Cameras should not be set up on or near an overpass, or facing an elevated adjacent road that may carry traffic past the extended speed camera radar beam.
Other sources of reflection are pole-mounted electricity supply transformers, metal signs such as house-for-sale or auction signs and Armco road barriers.
Metal bus stop shelters, public telephone booths, Australia Post letter-boxes, sheet metal garage doors, fences, factory walls and closely spaced iron picket fences are listed as possible reflectors capable of distorting speed readings."
This is probably the most comprehensive lot of information you will find on the topic in any one place. Follow the links to the other sites and read what they've got to say as well.
I would also suggest travelling back out to the site where the cop was parked, and suss out his line of sight to you, where you would have been when he got you with the radar.
Also, some other advice if you end up going to court to fight the ticket;
Make sure that you turn up EARLY, try and be the first one there in the morning, lined up out side the court building to be the first person to see the judge. This will make you look better, and also the judge would be more likely to be in a worse mood the more people he has to deal with during the day. So schedule it for the first thing in the morning if possible.
Try to recall your conversation with the cop when he pulled you over, because he most definately did! If you admitted to speeding when he pulled you over, he will have that on record, and use it against you in court. You really should write everything down immediately after the cop has gone, and whenever you are pulled over by a cop, ask them what you have done wrong and do not admit to anything, if you can, deny committing the offence that they said you did, and POLITELY ask for proof (radar reading) or indicate that the radar must have picked up someone else, because you were constantly checking your speed and didn't go over the limit - But NEVER be RUDE to the officer.
Thats aobut all the advice I can give you, but if you're serious about fighting your ticket, send me a pm, I will try and find the document for the Radar Standards in Australia - It has to be out there on the net for free somewhere, rather than paying $60 for it.
so i was going 138 he was a nice cop and said he would give me 3months suspension and the fine, its my first offence.
