Kaumātua have good knowledge of Māori tikanga, language and history; and their contribution ensures that the mana of the whānau, hapū and iwi are maintained.
[3] Kaumātua comport themselves with humility, honesty, and integrity, and typically possess deep knowledge of a particular subject such as whakapapa or tikanga, and know people who have expertise in other fields.
[4] Additionally, along with leadership and guidance of family and marae, many kaumātua exert a protective influence over the seas, rivers, lands and forests.
For kaimatai hinengaro carrying out health research on Māori, kaumātua of local iwi can be contacted through Te Puni Kōkiri.
The offices of Te Puni Kōkiri employ Māori liaison authorities who maintain a "register of local iwi contact people".