Moussa Koussa of Abdelbaset al-Megrahi, the alleged Pan Am Flight 103 bomber, whose involvement in the story is quite controversial. Several legal experts as well as the UN observer at the Lockerbie trial have vehemently challenged the verdict that convicted Megrahi. Koussa is also credited for the expulsion of Abu Nidal from Libya, whom he describes as a ruthless murderer and terrorist that Gaddafi allowed to live in Libya in 1986, the year the United States launched Operation El Dorado Canyon against Gaddafi for his association and harboring of terrorists. On 23 August 2002, the BBC reported that Abu Nidal was 'behind
Hans Köchler's Lockerbie trial observer mission he met former MP and Lockerbie activist Tam Dalyell, MSP Alex Neil and Iain McKie, father of Scottish policewoman Shirley McKie. On 18 September 2008, he delivered a keynote speech on the "Lockerbie Trial and the Rule of Law" organised by The Firm magazine which was held at the Glasgow Hilton Hotel. Focusing on the public interest immunity certificate deployed by the British government, Köchler said:"Whether those in public office like it or not, the Lockerbie trial has become a test case for the criminal justice system of Scotland. At the same time, it has become an exemplary case on