RNZ reports the decision comes after Emma Garo had sentenced three people who had pleaded guilty to various charges laid in connection with an anti-government protest 17 months ago.
The government is understood to be upset at what it sees as both the lenient sentences and the granting of bail by Ms Garo.
Earlier this year in parliament, Justice Minister David Adeang had warned judges to be careful about being what he considered too lenient, suggesting their contracts may not be renewed.
