The performance of Maori haka and powhiri in everyday life lacks authenticity and has become a corrupted spectacle, according to a leading historian.
Paul Moon, professor of history at Auckland University, said he cringed at a powhiri he attended at a government department.
"There was not one Maori involved in the whole process, and I was sitting there watching it and thinking, there are two groups of Europeans engaging in a process about which they know very little.
"I'd hesitate to use the word 'fake', but there's certainly an element of the culture being corrupted."
The use of the haka on the sports field, he said, had turned it into an entertainment spectacle.