Rosie Walker, of law firm Gilson Gray which is representing the parents, said: "This case will have far reaching implications."
The Māori Party criticised the recommendations as a "warning shot to all of us to fall in line"."When tangata whenua resist, colonial powers reach for the maximum penalty," it said in a statement on Wednesday, using a Māori phrase that translates to "people of the land".
It also said these are among the harshest punishments ever recommended by New Zealand's parliament.Deputy Prime Minister Winston Peters, who is Māori, said the trio were "out-of-control MPs who flout the rules and intimidate others with outrageous hakas".Their proposed suspensions will be put to a vote on Tuesday.
The Treaty Principles Bill, which sought to redefine New Zealand's founding treaty with Māori people, waslast month - days after a government committee recommended that it should not proceed.
The bill had already been widely expected to fail, with most major political parties committed to voting it down.
Members of the right-wing Act Party, which tabled it, were the only MPs to vote for it at the second reading on 10 April.A councillor has criticised "heinous slobs" who have dumped more than half a tonne of rubbish next to a busy road.
Martin Goss spoke out after a 10-hour overnight litter-pick along the A12 between Colchester and Marks Tey in Essex.Colchester City Council said six members of staff collected the rubbish in April.
Mr Goss, the council's head of waste, said the major road was in "a real mess".The A12 was closed by National Highways so the litter pickers could clear slip roads between junctions 25 and 27 without being at risk.