THE British justice system is the envy of the world.

Justice is one of the cornerstones of a democratic society, a bastion of truth and transparency.

But ask Jeremy Bamber his view of the British justice system and he will give you another view.

The convicted killer has served 31 years in jail for the murders of his parents Nevill and June Bamber, his sister Sheila Caffell and her twin sons Nicholas and Daniel at White House Farm in Tolleshunt D'Arcy.

Bamber says it is a crime he did not commit and claims he is the victim of a miscarriage of justice.

Over three decades he has pursued the legal system through every avenue available to him.

Two appeals against his conviction in 1989 and 2002 were rejected by the Court of Appeal and in 2012 the Criminal Cases Review Committee rejected his bid for a third appeal.

But now Bamber is planning to submit a new application for leave to appeal by examining the evidence against him and evidence which he says is as yet unreleased.

Speaking from Wakefield Prison, Bamber continues to protest his innocence.

He said: "All I am asking is for all the evidence to be disclosed, to be laid bare, so we can all see it.

"We want to see the original logs made on August 7 1985 and especially the original police notebooks which would have recorded what was going on contemporaneously.

"We also want the radio logs to hear what was being said at the time."

Bamber also wants information provided by police officers and witnesses under Public Interest Immunity to be released.

PII, also known as Crown privilege, allows one party to withhold information from another because its disclosure would be damaging to the public interest.

He believes evidence given to the 1986 Dickinson inquiry - the investigation into the way Essex Police handled the White House Farm murders - under PII should be made public.

This would include information about his former girlfriend Julie Mugford who turned Queen's evidence against Bamber as well as Sheila's medical and psychiatric reports.

He says many of the documents from the 1991 investigation carried out by the City of London Police are also kept secret under PII as well as some photographs taken from the crime scene.

Bamber also claims a large quantity of the evidence gathered during the initial inquiry - when Essex Police believed it was a murder suicide - has not yet been released.

His supporters from the Jeremy Bamber Campaign have today launched a new crowdfunding appeal which aims to raise £6,000 to enable all material evidence used in the trial to be reviewed.

The appeal has been called Forensics 360 as it aims to look at the case in its entirety.

The principle behind this is to look at the chain of evidence presented to his trial at Chelmsford Crown Court in 1986.

A chain of evidence protects the integrity of material evidence obtained by the police. It is a criminal offence to alter evidence chains because it can affect the outcome of a trial.

Forensics 360 will focus on paper trails, exhibit labels, forensic reference numbers, witness statements, police logs and photographs.

Key evidence will also be examined such as the issues surrounding the sound moderator, the silencer allegedly used during the killings.

Bamber's protestation of innocence rests entirely on his contention it his sister, Sheila, was responsible for the tragedies.

The prosecution in the 1986 trial argued it could not have been Sheila not least because she could not have killed herself while the sound moderator was on the gun because her arms were simply too short to have then reached the trigger.

Equally she could not have fatally wounded herself and then placed the sound moderator back in a downstairs cupboard where it was found three days later by Bamber's cousin David Boutflour.

The trial judge Mr Justice Drake said it was "inconceivable" Sheila would have used the sound moderator and then take it off.

He also said red paint found on the end of the silencer - allegedly from the mantlepiece in the kitchen - was proof it was attached to the rifle during the incident.

He told the jury: "On that fact alone you could convict."

However, Bamber's team say evidence challenges this representation of events.

Firstly, they say they have evidence more than one sound moderator associated to the farm was examined and the findings were merged - and as such contaminated - before being presented at trial.

They also challenge the evidence a sound moderator was used at all.

At the 2002 appeal, forensic scientists testified none of Sheila’s DNA was present either inside or outside the moderator.

However, the court found there were possible contamination issues relating to DNA testing and the sound moderator and the appeal point was rejected.

New forensic evidence from American expert Dr David Fowler, chief medical examiner of the US state of Maryland, who was commissioned by Bamber, also claims the fatal gun shot wound to Sheila’s neck was a contact wound meaning no sound moderator was attached to the gun.

However, the CCRC rejected this evidence saying it was speculation and insufficient grounds for appeal.

In addition, new evidence from Dr Daniel Caruso, chief of burn services at the Arizona Burn Centre and executive chair of the department of surgery at the University of Arizona, said burn injuries on Mr Bamber's back were made by the end of a rifle's barrel - not a sound moderator.

Bamber's team said they have documentation Malcolm Fletcher, a Home Office ballistics expert who gave evidence at his trial, had been instructed to investigate this possibility of the wounds having been made without a silence attached to the gun. They say the results were never disclosed.

Some evidence has already been lost.

All DNA exhibits relating to the White House Farm massacres were allegedly destroyed in 1996 and dumped in an incineration site off the North Circular in London despite a court order to preserve them.

A spokesperson for Essex Police said its position was constant and said repeated legal investigations had reached the same result.

She said: “Jeremy Bamber's conviction for killing five people, including two children, has been subjected to close scrutiny by the Court of Appeal and also a review by the Criminal Cases Review Commission and there has never been anything to suggest that he was wrongly convicted.

“The Court of Appeal found in 2002 that the deeper they looked into the available evidence the more likely it seemed that the jury was right.

“Between 2004 and 2012 the Criminal Cases Review Commission investigated the safety of the conviction with the full co-operation of Essex Police and it did not identify any new evidence or legal argument to overturn Bamber’s conviction.

“A Judicial Review brought by Bamber of the Commission’s decision was also dismissed by the High Court.”

A CPS spokesperson said: "Any decision on a further appeal is a matter for the Criminal Cases Review Commission.

“Requests for additional disclosure are only considered where it is shown it may materially cast doubt on the safety of a conviction.”