Further reading

Allason, R. The Branch. Chaucer Press, 1983.
Andrew, C. The Defence of the Realm. Alfred A. Knopf, 2009.
English, R. Armed Struggle. Oxford University Press, 2003.
Jones, I. London Bombed, Blitzed, and Blown Up. Frontline Books, 2016.
Porter, B. Origins of the Vigilant State. Boydell Press, 1991.
Secretary of State for the Home Department. CONTEST. Stationery Office, 2023.
Smith, P. Policing Victorian London. Greenwood Press, 1985.
Solomons, V. State Surveillance, Political Policing and Counter-Terrorism in Britain.
The Boydell Press, 2021.
Thomson, B. Queer People. Hodder and Stoughton, 1922
Wilson, R. and Adams, I. Special Branch. Biteback Publishing, 2015