The brother of Susan Burdett hopes that if London's Privy Council quashes Teina Pora's conviction for her rape and murder that new investigations will be opened.
Jim Burdett, whose sister Susan was attacked in her Papatoetoe home in 1992, believes that Pora, who is now on parole after serving 21 years in jail for the crime, is an innocent man.
He has followed the Privy Council arguments closely and believes that Pora will be cleared.
Mr Burdett, 66, has previously suggested that serial rapist Malcolm Rewa was behind his sister's slaying.
And while he has no beef with the original police investigation, he said today that if Pora's conviction is quashed then "logic would suggest that nobody has been convicted of my sister's murder, therefore there should be further inquiries made."