When Gerald Waters lost a good friend to a car crash caused by a recidivist drink-driver last year, he vowed to change the system so others would not have to go through such a loss.
But he never imagined that within 18 months, he would go from being a house husband to an internationally recognised road safety advocate and the inaugural recipient of a major international award.
Originally from Wales and now living in Auckland, Mr Waters lost his friend Katherine Kennedy when her car was hit by drunk driver Warren Jenkins in March last year.
Jenkins had 17 previous drink-driving convictions and had been released from prison only 10 days before killing Ms Kennedy.
Mr Waters, 43, who has a performing arts degree, threw himself into researching road safety. He made submissions to parliamentary committees, wrote a paper pushing for drug courts in New Zealand - a pilot programme was given $2 million funding this month - and worked alongside police at drink-drive checkpoints.