Philippa Tolley investigates the scale of migrant labour exploitation in New Zealand amid calls for tougher penalties for employers.
Two of the most serious cases of alleged exploitation of immigrants in recent times are making their way through the courts at present.
But advocates say more needs to be done to protect those who suffer unfair treatment in this country.
They say the victims are the ones who lose all in revealing wrong doing.
Philippa Tolley has been looking into the current situation.
Image: Indonesian fishing crew .From left Entis Sutisna, Anto Fantanto, Supri Yanto
Coming Up on Insight
8:12 am Sunday 3 May: New Zealand's Neglected Foetal Alcohol Problem
The damage that some babies can suffer when pregnant mothers drink heavily has again floated into the public consciousness after the Privy Council accepted that the then convicted murderer Teina Pora suffered from Foetal Alcohol Spectrum Disorder.
It quashed his conviction for the murder and rape of Susan Burdett and decided that his "frequently contradictory and often implausible confessions and the recent diagnosis of his FASD [Fetal Alcohol Spectrum Disorder] leads to only one possible conclusion ... that reliance on his confessions gives rise to a risk of a miscarriage of justice."
The number of people in New Zealand affected by the disorder is unknown, but some estimates indicate that 3,000 babies are born with it every year.
Insight's Philippa Tolley has been speaking to families coping with the disorder and Youth Court Judges about what needs to be done.