MSP Christine Grahame has lodged a Parliamentary motion calling on the Holyrood assembly to support the establishment of an international inquiry into the "circumstances that led to the blowing up of Pan Am 103 over Lockerbie", which explicitly links the event to the notorious shooting down of Iran AIr Flight 655 by the USS Vincennes in June 1988.

Some believe there is sufficient circumstantial evidence that supports the contention that Pan Am 103 was destroyed as a revenge attack on the civilian airbus.  290 passengers were killed in the shooting. Later investigations concluded the airliner had not presented any threat to the USS Vincennes.

The motion by Grahame states that "the Parliament supports the establishment of an international inquiry into the circumstances that led to the blowing up of Pan Am 103 over Lockerbie in December 1988 that murdered 270 passengers and urges all relevant Scottish authorities to co-operate with it; further supports that such an inquiry should also consider the relationship of that atrocity to the shooting down of Iranian flight 655 over the Straits of Hormuz five months before by a US warship, which claimed the lives of 290 passengers, and urges the international community to pursue, investigate and bring to justice all those ultimately responsible for these two terrorist attacks, which is considered to constitute crimes against humanity."

Justice Minister Kenny MacAskill has pledged support for any inquiry into the wider circumstances of the Pan Am 103 event, but has steadfastly resisted calls to initiate such an inquiry.