Aneurin "Nye" Bevan, the influential Welsh Labour politician who played a pivotal role in establishing the NHS, was under surveillance by UK security services for over two decades. Recent documents released by the National Archives reveal that despite this extensive monitoring, Bevan's personal security file was described as "remarkably tame."

Early Monitoring

Bevan first attracted the attention of MI5 in the 1930s due to his associations with known communists. His file was opened in 1933, and he was noted for having "inherited the evangelical fervour of his Welsh forebears" and using it in the communist cause. He maintained close ties with Harry Pollitt, the general secretary of the Communist Party of Great Britain, and was involved in efforts to organize "workers' freedom groups" against capitalist interests.

Concerns and Warnings

Even after Bevan became a minister in the postwar Labour government that established the NHS, MI5 continued to monitor him. At one point, his connections to a known Russian spy prompted the then director general of MI5 to alert Prime Minister Clement Attlee. However, some MI5 officers questioned the necessity of monitoring Bevan, with one stating in 1943:

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"I do not think that Bevan’s activities are a matter in which we, the Security Service, should be involved."