S161(1)(d), Immigration Act 2009
A residence class visa holder is liable for deportation if he or she is convicted, in New Zealand or elsewhere, of an offence against section 350(1)(a) or 351, if the offence was committed not later than 10 years after the person first held a residence class visa, and whether that visa was granted before or after this paragraph comes into force.
S350(1)(a), Immigration Act 2009
Every employer commits an offence against this Act who allows or continues to allow any person to work in that employer’s service, knowing that the person is not entitled under this Act to do that work.