A final appeal by two women convicted after the murder of Featherston man Glen Jones has been dismissed by the Supreme Court.
Tariana Jones is serving a sentence of life imprisonment with a minimum non-parole period of 17 years for the murder of Mr Jones.
Mr Jones, a 40-year-old supermarket worker, was fatally bashed in retaliation for an alleged rape. He died in hospital from massive head injuries after the attack in his Featherston home in January, 2013.
Tariana Jones and three other men were convicted of murder and aggravated burglary in May 2014. Toni Miller, who waited on the street while the murder took place, was found guilty of aggravated burglary and was sentenced to eight years' jail.
In July, the Court of Appeal dismissed appeals made by the two women. On Wednesday, the Supreme Court issued a decision denying their further appeal.
Jones had argued that the trial judge had not met his obligation to explain to the jury all the available defences, resulting in a miscarriage of justice.
The Court of Appeal said it had reviewed the question trails and the judge's summing up and found the judge instruction's were sufficient and there was no risk of a miscarriage of justice.
Both women had argued there had been a miscarriage of justice when the lawyer for one of the men said they had conspired to cast blame on his client.
The Supreme Court said it was not seriously arguable that the reference made by the man's lawyer had raised the risk of a miscarriage of justice.