Mr Tipple said he had followed the Bain case closely. He was aghast at Ms Collins' criticism of the independent report written by retired Canadian judge Ian Binnie, while keeping its contents confidential.

"I'm really disturbed there's not more legal people in New Zealand that are standing up and saying this is just not good enough. You're just making our whole judicial system a laughing stock.

"During that time representing Lindy Chamberlain, I used to think 'this wouldn't happen if I was in New Zealand' but ... in the Bain case I think he has been subjected to actually worse injustices than the Chamberlains."