Is this police sting reliable? Is it just?

When Halcombe builder David Lyttle answers a knock on his door in March 2014, he's drawn into a shadowy organisation with promises of wealth and friendship. David is desperate to join, but learns that first, he has to get the nod from the organisation's boss, Mr Big.

Mr Big asks David about his past. David says he's committed a murder. He shows the boss where he says the body parts are buried.

Then... he's arrested. It was all a police sting!

Police dig up the burial sites. There's nothing there.

Was this a confession?

Is it reliable?

Is it just?

Go to this episode on rnz.co.nz for more details