A Cochrane teenager has posted his daredevil stunts on YouTube.

Chris Ball says he does the stunts and posts them because he wants a movie career; police are concerned he is putting others in danger and may end up killing himself.

One of the videos, shot while Ball says he was still in high school, shows him behind the wheel with an SUV full of friends. They are on a two-lane highway. Ball sets the cruise control at 100 km/h, climbs out the window onto the roof, and surfs in the wind. A female passenger takes the wheel while the stunt takes place.

"I've never seen anybody else do it and I wanted to see if I could do it," says Wall, a self-proclaimed adrenaline junkie.

Another video show Ball jumping from the roof of his mother's SUV onto the hood while a friend drives the vehicle at highway speed.

"If I thought about the consequences while I was doing it, I would get too scared and I probably wouldn't do it. So I probably wouldn't think about it until after," says Ball.

Ball has caught the attention of police who are concerned about his recklessness on the road.

They've launched an investigation to see if criminal charges can be laid against him. "From the driving ones I've seen, there are definitely elements of the offense of criminal dangerous driving charges," says Sgt. Graeme Ramsay from the Traffic Unit of the Calgary police.

Ball says he doesn't think his dramatic stunts are putting others at risk, but that's not how police see it. "Maybe he needs to get charged with this to realize the magnitude of what he's doing and the risk he's putting people at," says Kevin Brookwell from the Calgary Police Service.

Ball says he now makes videos that only put him in harms way. On Monday night, he shot footage of himself jumping from a bridge onto a moving train.