How can i know which translation office is accreddited by NZ. Can i do the translation by any private translator registered in the country i reside in, even the document originated from different country??
You need a translator with issued license to work as a sworn-in translator, so he or she is able to provide you with official translations of the document. You should maybe go to the town hall or some other official institution in the city to help you find those translators.