Get your news delivered straight to you by 7am - sign up to our new Morning Mail newsletter for FREE See more Daily Mail on Google - save us as a Preferred SourceBy SCOTT JONES Published: 23:06 BST, 6 June 2026 | Updated: 23:08 BST, 6 June 2026

The lawyer who overturned Andrew Malkinson's wrongful conviction for rape has said the Jeremy Bamber case 'bears all the hallmarks' of a miscarriage of justice.Fresh evidence which reveals significant flaws in the White House Farm murders investigation will be revealed in a Channel 5 documentary tomorrow.Bamber, 64, is serving a whole-life sentence for the shotgun murders of his adoptive parents Nevill and June Bamber, both 61, his sister Sheila Caffell, 28, and her six-year-old twins Daniel and Nicholas at the Essex farmhouse on August 7, 1985.He insists that Ms Caffell, a paranoid schizophrenic, carried out the murders before shooting herself.The documentary will feature previously unseen letters from Ms Caffell which suggest she was suicidal at the time of the killings, and the results of new gun tests which suggest she would have been capable of inflicting the gunshot wounds on herself – which was the original premise of the investigation before attention switched to Bamber.The switch came after his former girlfriend, Julie Mugford, told authorities he had said he was planning the killings. It later emerged Ms Mugford had agreed to sell her story to the News of the World for £25,000 if Bamber were convicted.Appeal lawyer Emily Bolton, who secured Mr Malkinson's freedom after 17 years in prison in 2023, tells the documentary that she believes 'history is repeating itself' with many pieces of 'particularly potent' evidence coming to light which the jury in Bamber's trial did not hear. Andrew Malkinson spent 17 years in jail for rape he didn't commit. His conviction was quashed by the court of appeal in July 2023 and he has been exonerated Jeremy Bamber was charged and found guilty of the murder of his adoptive parents, his sister Shelia and her six-year-old twin boys at the family home of White House Farm nearly 40 years ago on October 6, 1986 New gun tests have undermined the prosecution case that Sheila Caffell (pictured) could not have shot herself if a silencer was fitted, Bamber's lawyer has claimedMs Bolton, director of Objection, a non-profit group that spotlights stories of injustice, told The Mail on Sunday: 'This evidence should have been in front of the jury – and it was not. For that reason, the conviction must be quashed.'In one unseen letter to her mother, Ms Caffell wrote: 'The Sun newspaper, the police are going to be in touch soon and get this whole dirty mess cleaned up. 'As soon as this is dug up and the public know then my darling mummy, with my babies and me go to our rest.'The documentary hears Essex Police claimed the writing was illegible and failed to disclose the letters to the defence team.New gun tests also undermine the prosecution case that Ms Caffell could not have shot herself if a silencer was fitted, Bamber's lawyer claims. Tests by ballistics expert Philip Boyce have concluded there was no silencer on the gun.Jeremy Bamber: Proof Of Innocence is on tomorrow at 9pm. Watch or stream on C5.