A fresh appeal to free convicted murderer Luke Mitchell from jail has been launched by a charity.

Mitchell, now 29, was sentenced to 20 years in prison after being found guilty of murdering his 14-year-old girlfriend Jodi Jones.

Her body was found in woods near her home in Midlothian in 2003.

Miscarriages of Justice Organisation (Mojo) was started by Paddy Hill, who was one of six men wrongly accused of the 1974 Birmingham pub bombing.

Mojo has been working for a number of years helping campaigners put together an appeal, under the belief flaws in the police investigation led to a miscarriage of justice.

Paul McLaughlin, a case worker at Mojo said: "We've been involved in the background of Luke Mitchell's case for a number of years, becoming more involved after the last appeal was dismissed.

"The last major application was done by Dr Sandra Lean and Luke's mother. We are now working in conjunction with Dr Lean."

Mr McLaughlin added: "There were a variety of things that weren't covered in the last appeal. So we're reviewing all the evidence that wasn't disclosed or wasn't available at the last appeal.

"We believe that there is a potential of a serious miscarriage of justice here."

Forensics expert Professor Allan Jamieson will also be reviewing the police evidence against Mitchell.

The case will be presented to the Scottish Criminal Cases Review Commission (SCCRC).

Mitchell has always insisted he was innocent.

Previous appeals made have been dismissed by the SCCRC.