Syrian officials that the PFLP-GC was involved and that officials interacted with Jibril "on a constant basis". In 2014, an Iranian ex-spy asserted that Iran ordered the attack. The Iranian foreign ministry swiftly denied any involvement. Investigation Civil investigation Crash site The initial investigation into the crash site by Dumfries and Galloway Constabulary involved many helicopter surveys, satellite imaging, and a search of the area by police and soldiers. The wreckage of the crash was scattered over , and AAIB investigators were confronted by a massive jigsaw puzzle in trying to piece the plane back together. In total, 4 million pieces of wreckage were collected and registered on computer files. More than 10,000 pieces of debris were retrieved, tagged, and entered into a computer tracking system. The perpetrators had apparently intended the plane to crash into the sea, destroying any traceable evidence, but its explosion over land left a trail of evidence. The fuselage of the aircraft was reconstructed by air accident investigators, revealing a hole consistent with an explosion in the forward cargo hold. Examination of the baggage containers revealed that the container nearest the hole had blackening, pitting, and severe damage, indicating a "high-energy event" had taken place inside it. A series of test explosions was carried out to confirm the precise location and quantity of explosive used. Fragments of a Samsonite suitcase believed to have contained the bomb were recovered, together with parts and pieces of circuit board identified as components of a Toshiba 'Bombeat' RT-SF16, radio cassette player, similar to that used to conceal a Semtex bomb seized by West German police from the Palestinian militant group PLO-GC two months earlier. Items of baby clothing, which were subsequently proven to have been made in Malta, were thought to have come from the same suitcase. Witnesses The clothes were traced to a Maltese merchant, Tony Gauci, who became a key prosecution witness, testifying that he sold the clothes to a man of Libyan appearance. Gauci was interviewed 23 times, giving contradictory evidence about who had bought the clothes, that person's age and appearance, and the date of purchase, but later identified Abdelbaset al-Megrahi. As Megrahi had only been in Malta on 7 December, that date was assumed to be the purchase date. This date is in doubt, as Gauci had testified that Malta's Christmas lights had not been on when the clothes had been purchased; the lights