But in a decision released today the Supreme Court did not think it was appropriate to hear the case and did not give her leave for the appeal
Devoy had already attempted to challenge her convictions and sentence when appearing before the Court of Appeal earlier this year on the basis that her trial lawyers allegedly made errors.
But Justices Rhys Harrison, Murray Gilbert and Sarah Katz said both trial lawyers acted according to their instructions
The two lawyers - Mina Wharepouri and Quentin Duff - both "discharged their obligations as Ms Devoy's trial counsel with considerable skill and care in demanding circumstances".
The judges said that the evidence of Devoy's guilt was "overwhelming".