Daphne Park (1921-2010), later Baroness Park of Monmouth, was a former senior MI6 controller. According to Stephen Dorril, Park worked with the CIA in trying to overthrow the Government of Patrice Lumumba following the independence of the Congo. 
'Risk, Threat and Security'
Park was a member of a private seminar series which met between May 2006 and January 2008 and produced an article in the RUSI Journal called 'Risk, Threat and Security: The Case of the United Kingdom'. The article expressed concerns that the 'politicisation' of defence policy and a national 'lack of confidence' made the UK vulnerable to security threats. It suggested therefore the partial removal of defence policy from democratic control.
In assessing the supposed security threats to the UK, the article expressed a concern that the country was ‘soft’ and lacked a cohesive identity which made it vulnerable to enemies. It complained of a ‘lack of leadership from the majority which in misplaced deference to ‘multiculturalism’ [has] failed to lay down the line to immigrant communities’. 
- They Work For You Baroness Park of Monmouth
- Baroness Park of Monmouth: Secret Intelligence Service officer, Sunday Times, 26 March 2010.
- Tom Whitehead, MI6 organised execution of DRC leader Lumumba, peer claims, Telegraph, 1 April 2013.
- Rachel Sylvester, 'A licence to kill? Oh heavens, no!', telegraph.co.uk, 24 April 2003.
- Stephen Dorril, MI6: Inside the Covert World of Her Majesty's Secret Intelligence Service, Touchstone, 2002, p.721.
- Gwyn Prins & Robert Salisbury, 'Risk, Threat and Security: The Case of the United Kingdom (PDF)', RUSI Journal, Feb 2008, Vol. 153, No. 1