HC Deb 30 June 1980 vol 987 c394W
Mr. D. E. Thomas

asked the Secretary of State for the Home Department what is his definition of the term subversive as used in his report "Interception of Communication".

Mr. Whitelaw

Subversive activities are those which threaten the safety or wellbeing of the State, and which are intended to undermine or overthrow Parliamentary democracy by political, industrial or violent means.

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