Fresh evidence has cast doubt on the conviction of a Libyan for the Lockerbie bombing 20 years ago that killed 270 people.
New forensic analysis on a fragment of the timing device alleged to have triggered the bomb that brought down Pan Am jet 103 on December 21, 1988, is said to have found no trace of explosive residue.
Lawyers acting for Abdelbasset Al Megrahi, the 56-year-old Libyan jailed for life for the bombing in 2001, will present the evidence at a forthcoming appeal into his conviction.
His legal team says the new information supports claims the timer was planted by investigators in a politically-motivated attempt to incriminate Libyan leader Colonel Gaddafi.
Was Pan-Am 103 a false-flag attack, like Gliewitz? Like the Lavon affair? Like the USS Liberty? Like the USS Cole? Like 9-11?