from your links

Māori make up 50 per cent of New Zealandís prison population, despite only accounting for 15 per cent of the population

But police deputy commissioner Wally Haumaha had reservations about the study because it didn't show what type of crime was being committed.
He said the disparity may be that Māori were committing more serious offences and ineligible for programmes which diverted people away from court for low-level crimes like shoplifting and careless driving.
"If they are being arrested at the lower end of the scale and those opportunities are not being provided, then I would be concerned."

Pretend Maori Crime rates are not real , nothing will ever change .
Another generation will be lost. Again .