Ko te Tiriti o Waitangi te tiriti tuatahi i whakaritea i waenganui i ngā Māori me te Kāwanatanga o Ingarangi. I whakauruhia i te tau 1840, ā, i te tau 1975 ka whakaaetia e te Kāwanatanga o Aotearoa te Tiriti o Waitangi Act hei whakaturuki i te Tiriti. Ko te kaupapa o te Tiriti o Waitangi Act ko te whakarite kia whakaaetia, whakamana, whakapono hoki ngā tikanga o te Tiriti o Waitangi ki roto i te whakahaere a te kāwanatanga. Ko te Roopu Whakahaere Tiriti (Te Titiri Tribunal) te kai whakapono i ngā tautohetohe e pā ana ki te Tiriti, ā, kua whakaponoia e rātou anō hoki ngā tikanga hei whakapai ake i te noho tōtika i waenganui i ngā Māori me te Kāwanatanga.