The re-emergence of iwi-led traffic checkpoints last week attracted renewed criticism from Hobson's Choice.
"Once again we are seeing appalling examples of Māori tribes taking the law into their own hands, and putting barriers around what they refer to as 'their territory,'" spokesman Don Brash said.
"In the last week we've seen a resurgence of this nonsense in Northland, in the Eastern Bay of Plenty and in the Ruapehu area.
"All New Zealanders should be reminded that it is only the lawfully-elected government that has the power to impose barriers to travel on public highways. In the absence of such government-determined barriers, such as those around Auckland at present, all other public roads must be free for all New Zealanders to travel on."
He was also keen to hear what the political parties that claimed to believe in the legal equality of all New Zealanders had to say about "this clearly illegal activity."