A VIDEO narrated by actress Susan Penhaligon is being made calling for the release of evidence relating to Essex's notorious White House Farm murders.

This year is the 30th anniversary since Jeremy Bamber was jailed for life for the murders of five members of his family at the farm in Tolleshunt D'Arcy.

The convicted killer, who has always protested his innocence, claims Essex Police still has information which he says is vital to his case.

Now a video is being prepared which is set to be narrated by the actress who is best known for her role in the TV drama series Bouquet of Barbed Wire and Emmerdale.

Among the other contributors are Michael O'Brien who was in Long Lartin jail in Worcestershire with Bamber but who is now one of the patrons of the campaign group lobbying for his release.

Mr O'Brien was serving life after being wrongly convicted for the brutal murder of newsagent Phillip Saunders.

Mr O'Brien served 11 years in jail before his conviction was quashed by the Court of Appeal in 1999. He then pursued and won a civil case against the South Wales Police and was awarded an out-of-court settlement of £300,000.

Award-winning author Mr O'Brien said he believed 100 per cent in Bamber's innocence.

He said: "There are a lot of people who say they are innocent and they are not. You find out straight away when you read the evidence.

"I am not easily fooled. I would not put my neck out for Jeremy Bamber if I did not think he was innocent."

Mr O'Brien added: "He was on the same spur as me at Long Lartin.

"He was not everyone's cup of tea because he was confident. That gave the impression of arrogance, the two are close together.

"He was a bit of a target because people wanted to attack him. There was always someone who wanted to make a name for themselves.

"He was quite a mellow type of guy but he had to toughen up."

Mr O'Brien said he, Bamber, Michael Shirley and Peter Fell would discuss their cases together when they were in Long Lartin.

Mr Fell was convicted of the murders of Ann Lee and Peggy Johnson in 1982 but had his conviction overturned in the Court of Appeal after serving 18 years in jail.

Mr Shirley was jailed in 1988 after being found guilty of the rape and murder of Linda Cook and was sentenced to life imprisonment.

His conviction was quashed in 2003 by the Court of Appeal after the DNA profile extracted from semen samples recovered fromLinda's body was proven not to be his.

Bamber is Britain's six longest serving prisoner and is currently imprisoned in the high security Wakefield Prison in Yorkshire.

He was jailed for life in 1986 after being found guilty at Chelmsford Crown Court for the murders of his parents Nevill and June Bamber, his sister Sheila Caffell and her sons Daniel and Nicholas, who were six.

Bamber claims Sheila, who suffered from paranoid schizophrenia, killed the members of their family before turning the gun on herself.

Other high profile supporters of his claims of innocence are human rights campaigner Peter Tatchell, magistrate Diana Lady Waterlow and former MP Andrew Hunter.

Bamber claims there is evidence relating to his case which has not been disclosed.

Two appeals against conviction have been dismissed.

Bamber is lobbying the Criminal Case Review Commission for leave for a third appeal.

A spokesman for Essex Police 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."