The unanswered questions...

1 Will al-Megrahi’s family get the chance to appeal on his behalf?

The Scottish Criminal Cases Review Commission is looking at Megrahi’s conviction and if it decides there has been a miscarriage of justice, the case will return to the Court of Appeal. Some believe the truth will finally be brought to light.

2 Why was key evidence overlooked at the original Lockerbie trial?

A break-in at the Pan Am baggage department at Heathrow airport before the bombing was never disclosed to the judges. And a $2million reward paid to witness Tony Gauci by the US only emerged years after Megrahi’s conviction.

3 How can a discrepancy in forensic evidence be explained?

A fragment of bomb timer found in a field near Lockerbie was linked to Libya, as Swiss firm Mebo had sold timers to

Colonel Gaddafi’s regime. It has since emerged the fragment was made of pure tin, not the lead/tin alloy used by Mebo.

4 If Megrahi did not plant the bomb then who did?

Some believe Iran paid Palestinian terror group PFLP-GC to carry out the attack after the US Navy accidentally shot down an Iranian airliner in July 1988, killing 290 people.

5 What were the warnings?

German police told British authorities a PFLP-GC cell might plant bombs hidden in tape recorders on passenger planes, while a man with an Arabic accent rang the US Embassy in Helsinki on December 5 to say a Pan Am flight from Frankfurt to the US would be blown up.