They were difficult times amid disputes over the community centre which had been established in Flaxmere, but Teariki, who had become a prison officer in 2001, saw the need to bring the people back together.
He steered the society through significant hall-improvement fundraising and into registration as a charitable organisation and the centre now has facilities including accommodation, showers and toilets, and kitchen amenities, including an industrial chiller.
It can host up to 500 people and has been widely used for cultural and other events, including birthdays and weddings, not only within the Cook Islands community, estimated to number up to 4000 people in Hawke's Bay, but also the wider Flaxmere community.
Teariki has also was a driving force in the establishment of the Cook Islands seniors social group PaMeuta, of which he became secretary in 2014.
He leads its weekly exercise programme, which extends to looking at health, diet and safety issues, and organising an annual out-of-town trip, including the travel and accommodation.
Spreading the commitment across the age groups, he has also organised sports weekends for the community's children.
He said news of the honour, in a letter about two months ago, was a surprise, but he says accepting it thanks his church and elders who have helped him lead some of the aspirations of his people in New Zealand.
With two sons, the elder of whom is also a prison officer, and with two grandchildren, he looks forward to working for the community from some considerable time yet.