Sounds like a Section 154 offence which carries 3 demerit points.

Right now request a trial, request disclosure and request the earliest possible trial date (don't worry, you won't get one). You can check out my site below for your introduction to fighting a ticket, step by step instructions and the form letters you will need.

Unless the officer was an accident reconstruction expert, they have to rely on witness statements. When you get the accident report (typed please) you will start to see the lack of evidence against you. And this is where your fight begins.

If you have questions, post them here.

Good luck and good fight!