A witness who gave evidence in the trial that convicted Gail Maney for murder says they lied to police after being threatened and harassed.
An affidavit signed by the witness, whose name has been permanently suppressed will be used as fresh evidence to help clear Maney's name.
The witness says they lied when they admitted being present during the murder of West Auckland man Deane Fuller-Sandys in 1989.
The person also claims to have been pressured to give a false statement after police threatened to take away their young child.
Maney was jailed for life for her part in the death of Fuller-Sandys and the case against her is laid out in Gone Fishing - a true-crime podcast produced by Stuff and RNZ.
Stuff senior reporter Amy Maas has been working on the story. She talks to Susie Ferguson.