THE STATE AND THE ASSASSINATION THREAT IN BRITAIN, 1971–1984

The emergence of London as a major site of political murder caught the British state by surprise in the early 1970s. Assumptions about assassination – as an event linked to the British empire – built up over seven decades – had to be abandoned in under a decade. The change in Britain's understanding of its vulnerability within the international system was traumatic. This change took place in three stages, beginning in 1971, 1978, and 1984. There were strong elements of continuity between the Callaghan government and the first Thatcher government. It was the second Thatcher government that made a more radical break with the past. A new understanding of assassination conspiracies altered fundamentally the state's approach to security.