You are right, usually the guy behind is 100% at fault... unless the driver in front causes the accident (by slamming on the brakes maliciously, for example... just like in this case).
What the officer should have done, given the motorcycle driver's allegations, is to ask the lady "What happened?" to get her side of the story, and then "Why did you stop at this particular spot?"
Then, the officer should have impounded her vehicle and suspended her license based on this:
Definition, “stunt”
3.For the purposes of section 172 of the Act, “stunt” includes any activity where one or more persons engage in any of the following driving behaviours:
8. Driving a motor vehicle without due care and attention, without reasonable consideration for other persons using the highway or in a manner that may endanger any person by,
.......
ii. stopping or slowing down a motor vehicle in a manner that indicates the driver’s sole intention in stopping or slowing down is to interfere with the movement of another vehicle by cutting off its passage on the highway or to cause another vehicle to stop or slow down in circumstances where the other vehicle would not ordinarily do so,
Agree completely with Marcos, and added the bit I think he missed.
I'm not sure if you have a real opportunity now without the witness. You could file a complaint with TPS, because even if you don't have the badge number (because the officer intimidated you AND told you to leave), he may have made notes.
The worst case scenario would be that officer gets ticked and decides he should have charged you - I doubt that would be successful, and in my opinion the fear of it happening should not deter you from pursuing it.
That's assuming of course, that the driver antagonized you, brake checked you, and all you did was follow behind at what would normally have been a reasonable distance.
Maybe you'll get really lucky and spot that witness again.
Last edited: