Former Justice Minister Alan Shatter has failed in a High Court bid to quash parts of the Guerin Report into the handling of allegations by a garda whistleblower.

Mr Shatter resigned after its publication last year and claimed in court he was deprived of fair procedures in the compilation of the report.

The court was highly critical of allegations of bias against Mr Guerin, which the former minister subsequently withdrew.

The report by barrister Sean Guerin looked at the handling of complaints made by garda whistleblower, Maurice McCabe.

Following its publication last year, Mr Shatter went to the High Court to challenge some of its findings - claiming it was unfair that he had not been interviewed by Mr Guerin for his side of the story.

He has lost his case and says he will now reflect on the judgment.

Mr Justice Seamus Noonan found that Mr Guerin's report was preliminary in the nature of an expert opinion, and so did not attract the requirements of natural justice.

But even if it did, he has found there was no denial of fair procedure to Mr Shatter.

He said the former minister will have an opportunity to tell his side of the story to the Commission of Investigation set up in the wake of Guerin.