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Ross Peter Guy had levels of cannabis in his system 20 times over the threshold considered high risk while driving.

A driver was high on a "significant amount of cannabis" and methamphetamine when he smacked into a car stopped in front of him, injuring the driver.

Ross Peter Guy had levels of cannabis in his system 20 times over the threshold considered high risk while driving.

He claimed his attention was diverted by two SPCA workers in high-vis vests with a cage beside the road, and that he couldn't stop in time before shunting into the car.