Watch: Could Dutch safety technique save lives?
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Watch: Could Dutch safety technique save lives?

The family of a cyclist who died after being "car-doored" is calling for the Dutch Reach technique, which forces drivers and passengers to check behind them before leaving the car, to be taught in schools.

This video shows how a driver would typically open a car and then the Dutch Reach.

Cyclist Sam Boulton was killed when he was knocked into the path of a moving van after being hit by an open taxi door.