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 26 October: Insight: Turning Labour Around
Labour Party campaigners in Auckland. RNZ / Kim Baker Wilson
Why has the Labour Party lost its support?
With the party in the throes of a leadership race and conducting its own review into its poor performance at the last election, Insight investigates the reasons behind Labour's decline in popularity over the last six years.
Catherine Hutton speaks to unionists, former politicians, political commentators and those on the street about what the party needs to do to rebuild its fortunes.
8:12 am Sunday 2 November: Insight: Maths and Science Not Hitting the Mark
New Zealand children have been doing badly in maths and science -but is it getting worse?
Their scores in international tests have been falling for the past decade and it has now reached the point where Year 5 and Year 9 students' are ranked among the lowest in the developed world.
Radio New Zealand education correspondent, John Gerritsen, investigates why our scores are on the slide and what is being done to stop it.