Stephen Thomas Swingler, PC (2 March 1915 – 19 February 1969)[1] was a British Labour Party politician who was a Member of Parliament (MP) from 1945 to 1950, and from 1951 to his death.
Swingler was considered to be on the left of the party; he was the inaugural chair of a left-wing group called Victory for Socialism at its formation in 1958, and closely associated with it until its dissolution in 1964.
On 8 November 1956, the Attorney-General Reginald Manningham-Buller handed the Scotland Yard report into Adams' activities to Dr McRae, Secretary of the British Medical Association (BMA), effectively the doctors' trade union in Britain.
After a tip-off from a Daily Mail journalist, on 28 November Swingler (in conjunction with MP Hugh Delargy) addressed a question to the Attorney-General to be answered in the House of Commons on 3 December regarding Manningham-Buller's recent contacts with the General Medical Council.
Adams was eventually acquitted of the murder of Edith Alice Morrell but was suspected by Home Office pathologist Francis Camps of killing 163 patients.