The team that helped free Teina Pora has now turned its attention to the case of convicted double-murderer Scott Watson.
Watson was jailed in 1999 for the murders of Olivia Hope and Ben Smart in the Marlborough Sounds, but he has maintained his innocence for the past 18 years.
Lawyer Jonathan Krebs helped quash Pora's conviction for the 1992 murder of Susan Burdett. He is now working on Watson's application for a Royal Prerogative of Mercy, which, if successful, could re-open the case of the Sounds murders.
Private investigator Tim McKinnel, who also helped to clear Pora's name, will be involved in Watson's application.