In 1969 Home Secretary James Callaghan requested action that would hinder Jones' career, which was raised in cabinet, and further discussed with Secretary of State for Employment Barbara Castle. A plan for detrimental leaks to the media was placed in the Foreign Office propaganda Information Research Department, and its head prepared a briefing paper. However information about how this was effected has not been released under the thirty-year rule under a section of the Public Records Act permitting national security exemptions.