Immigration officers will gain police-like powers to enter and search homes without a warrant under law changes designed to stamp out exploitation of migrants - a move that is being questioned by lawyers and civil rights groups.
The Government is cracking down on migrant exploitation after reports of international students and temporary visa holders being underpaid, trapped on their employers' premises and, in extreme cases, forced into prostitution.
At present, immigration laws offer protection to illegal migrants who are exploited, but not to migrants who are legitimately working here. The Immigration Amendment Bill (No 2) will introduce heavy penalties including deportation for migrant bosses or business owners who exploit workers.
As part of the reforms, Immigration New Zealand officials will be given greater tools to crack down on worker abuse.