The Pan Am Flight 103 bombing trial began on 3 May 2000, more than 11 years after the destruction of Pan Am Flight 103 on 21 December 1988.

Pan Am Flight 103 conspiracy theories suggest a number of possible explanations for the bombing of Pan Am Flight 103 on December 21, 1988.

The investigation into the bombing of Pan Am Flight 103 began after Pan Am Flight 103, en route from Frankfurt to Detroit with stopovers in London and New York City, was blown up at 19:03 on 21 December 1988 over Lockerbie in Dumfries and Galloway, Scotland.