New Zealand First Winston Peters is blaming all Maori for the killing of the Kahui twins.
Police have decided not to pursue any further charges over the deaths of the three-month-olds.
Coroner Garry Evans said their injuries were inflicted while they were in the care of their father Chris, but he was acquitted on murder charges.
His lawyer Lorraine Smith says Mr Kahui can now get on with his life, saying he'll never get over his twins' deaths.
Mr Peters says the whole of Maoridom should be bowing its head in shame.
"That's a serious blight on Maoridom and we have to own up to it. The cone of silence around it led to a lot of uncertainty as to what the evidential facts were and Maoridom's got to take initiative of that and say 'this cannot be allowed to go on in the future'."
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