I came across this video:
http://richardhughes.ca/cumberland-m...in-cumberland/
It does show several angles. Just not the teen riding on the sidewalk, or riding without a helmet. The videos' only show the kid on the ground with no helmet. So, While the officer with Cumberland RCMP 'claimed' the teen was riding on the sidewalk, with no helmet. That isn't seen in the videos'. So that can go both ways. As to the teen not wearing a helmet. He is not caught on video(here), not wearing a helmet, just on the ground with no helmet. But in the compiled video. While the teen is on the ground. It doesn't show a helmet laying anywhere near him, on the ground. So, That seems to favor the officer. But that doesn't mean the teen wasn't wearing a helmet.