NZ First MP Ron Mark was warned not to "threaten" a Local Government commissioner during a testy exchange at the super-city hearings in Carterton on Tuesday.
The hearing, which began at the Carterton Events Centre and transferred to Masterton in the evening, was the first of two days of hearings in Wairarapa, following on from those held last month.
With submitters asked to keep to a time of 10 minutes, Mr Mark was repeatedly asked by the convenor to wrap up his submission.
Commission chairman Basil Morrison reminded Mr Mark it was a commission of enquiry and asked him to respect the rules.
Mr Mark, who is a member of the parliamentary local government and environment committee, said that would be noted for the future, to which Mr Morrison replied: "I'm not going to be threatened ... why can't you be respectful of the commission like the rest of the submitters?"