A convicted killer who is serving life for the murder of his ex-girlfriend in Suffolk has taken his case to the Supreme Court.
Kevin Nunn was found guilty in 2006 of killing Dawn Walker, whose body was found on a river bank near Bury St Edmunds.
Kevin Nunn has been fighting his conviction ever since in an attempt to clear his name.
In his latest challenge he is seeking permission to re-test forensic evidence from the original trial.
Dawn Walker was murdered in 2005, during Nunn's trial a Jury decided he had killed the 39-year old during an argument and set her body on fire by the River Lark near her home at Fornham St Genevieve.
Kevin Nunn is now arguing that advances in DNA technology mean samples found at the murder scene which couldn't be tested eight years ago, could now help establish his innocence.
But lawyers for Suffolk Police and the Crown Prosecution Service are opposing the application.
It will be several weeks at least before the Supreme Court Judges announce their findings.