Eli Epiha, the man who shot dead Matthew Hunt in 2020, and wounded a second police officer, has failed to have his minimum 27-year jail sentence reduced.
The Court of Appeal said the sentence was not manifestly excessive, although this was disputed by Epiha's lawyer.
Mark Edgar told the court too much weight was placed on the fact the offending involved killing a police officer, and said there was also no prospect of his client being rehabilitated.
Edgar spoke to Mani Dunlop.