Two months after publishing a celebrated and much-debated investigation into the trial of Lucy Letby, the New Yorker has once again taken aim at the British judicial system. Today the American magazine published a 17,000-word article questioning the conviction of Jeremy Bamber for the White House Farm murders of 1985 — dubbed “the UK’s most infamous family massacre” — in which five of his relatives were killed.

The piece claims that police lied about and concealed evidence, and tampered with witness statements following the shooting in Essex four decades ago. Bamber has always protested his innocence, the only whole-life prisoner in Britain to do so, and the New Yorker has spoken to officers present in the aftermath of the murders who seem to corroborate his claim that the police interfered with crime scene evidence. Will the investigation kickstart a Letby-style campaign?