Convicted double murderer David Tamihere wants the use of so called jailhouse snitches as witnesses reviewed. .
Three were used in his 1990 trial for the killing of two swedish tourists. .
One of those witnesses has been revealed a Robert Conchie Harris, a double murder, who has since been found guilty of perjury over the evidence he gave.
Joining Ryan Bridge and Lisa Owen to discuss this is Tony Bouchier, past President of Criminal Bar Association & former Police Detective.
Listen to the full interviews with Tony Bouchier above.
Drive with Ryan Bridge and Lisa Owen, 3pm - 6pm Weekdays and streaming live on 'rova' channel 9 - available on Android and iPhone.