A shift in attitudes towards drink driving was the major change seen by retired police superintendent Paula Rose in her 27 years in road policing.
"When I started with the Ministry of Transport in 1984 the amounts people would drink and the social acceptance of drink driving was light years away from what it is today," she said at an investiture ceremony today.
"We've still got too many people drinking and driving but attitudes are changing, we've got some wonderful young people doing great things.
"We've got to keep separating drinking and driving. That's going to save lives."
Mrs Rose, from Upper Hutt, was made a companion of the Queen's Service Order for services to police and the community in the New Year Honours list.