A migrants advocate doesn't think an investigation into the Accredited Employer Work Visa Scheme will not stop workers from being exploited.
Immigration is now under investigation over whistleblower claims employers wanting to hire migrant workers using the Accredited Employer scheme aren't being checked properly.
The Immigration Minister Andrew Little has ordered the inquiry.
RNZ has been reporting on workers who arrive here on the visa only to find themselves without jobs and penniless.
Migrant Workers Association president Anu Kaloti says previous reviews have changed nothing.
Kaloti spoke to Ingrid Hipkiss.