Go-betweens - Introduction
An important feature of early cross-cultural contact in New Zealand was the role of intermediaries (kaiwhakarite) who acted as go-betweens – people from one culture who lived within the other culture and helped bridge the gap between the two.
Europeans knew that there was money to be made in New Zealand from whaling, sealing, and harvesting flax and timber, and intermediaries helped smooth the way. Relationships with Maori women offered a degree of protection, as Pakeha were less likely to be attacked if women were present.
Maori were also aware of the potential benefits of establishing relationships with Europeans. Women were used to attract and keep a Pakeha in the community, making contact with other Europeans likely. As hapu and iwi sought to gain an advantage over their rivals, acquiring a European trader became a matter of mana as much as economics.
https://nzhistory.govt.nz/culture/maori-european-contact-pre-1840/the-go-betweens