THE man convicted of murdering Edinburgh book-keeper Suzanne Pilley has been granted a review which could take his case back to the High Court.

Scotland's miscarriage of justice watchdog has accepted an application for a review of the conviction of David Gilroy, 51, who is serving a minimum of 18 years for the murder of 38-year-old Ms Pilley, who was his colleague and former lover.

The move by the Scottish Criminal Cases Review Commission (SCCRC) is described as "almost a second appeal".

Its decision to hold the review is also significant because only a fraction of convicts' grounds for appeal, which in this case are not yet known, are considered strong enough to examine fully.

Of those, just five per cent are referred to the High Court when the SCCRC believes there has been a miscarriage of justice. It could take up to eight months for the SCCRC legal experts to make their findings.

It will mean further uncertainty for Ms Pilley's parents, Rob, 70, and Sylvia, 71, whose daughter's body has not been found.

Mr and Mrs Pilley said they are aware of the review but declined to comment at their home in Edinburgh yesterday.

The watchdog plays a key role in the Scottish justice system and is currently considering the review of the case of the man convicted of the Lockerbie bombing, Abdelbaset Ali Mohmed Al Megrahi, which is its biggest case to date.

Other reviews include convicted killer Malcolm Webster's case and former MSP Tommy Sheridan's perjury conviction.

Reviews are usually applied for when the initial appeal process has failed.

A source connected to the case said the move is an important step as "an appeal will only be accepted for review if there are new grounds" for examination.

Reviews can involve challenges to both conviction and sentence but this review centres on Gilroy's conviction.

Gilroy, formerly of Silverknowes, Edinburgh, was jailed for life at the city's High Court in April 2012 for murdering Ms Pilley in May 2010, and has had one appeal rejected.

The office worker went missing following the May Day holiday that year.

Prosecutors believe Gilroy dumped Ms Pilley's body close to the Rest and Be Thankful road near Arrochar in Argyll.

The Court of Criminal Appeal in Edinburgh rejected an appeal by Gilroy in 2012.

It was argued then that when police interviewed Gilroy in the days following Ms Pilley's disappearance, they contravened his right to have a fair trial.

His legal representative said police interviewed Gilroy as a witness to a potential crime, but that evidence showed they suspected him of committing a crime.

It was said detectives did this to deprive him of the right to consult a solicitor before speaking to them.

Gilroy's wife Andrea sat in the public benches at the appeal.

Gilroy's legal team said when that appeal was rejected they planned to make a further appeal to the UK Supreme Court in London.

Last June the Gilroy family issued a statement ahead of a BBC Crimewatch programme about Ms Pilley saying that legal appeals were ongoing and that an application for a review was being made to the SCCRC.

Mr and Mrs Pilley said at the time they hoped the programme would lead to the discovery of their daughter's body and help towards closure.

A spokesman for the SCCRC confirmed the application had been accepted for full review.