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 August: Future Food Security - Feast or Famine?
Buffalo ploughs a rice paddy in Vietnam (RNZ/Benedict Collins)
All over the world efforts are underway to try to breed new, stronger and more nutritious varieties of grains, fruits and vegetables for the rising global population.
Work is being carried to try to help farmers keep on producing enough food, as concern about how crops might cope with climate change intensifies.
Radio New Zealand's Rural reporter, Benedict Collins speaks to experts across Asia and New Zealand about the big issues facing food now and what their predictions are for the future.