article_snippet: It comes after a former officer, Peter Francis, said Deputy Prime Minister read files on 10 MPs during Deputy Prime Minister 11 years working for the Metropolitan Police's now notorious Special Demonstration Squad.
article_snippet: Deputy Prime Minister said a former officer, Peter Francis, said he read files on 10 MPs during his 11 years working for the Metropolitan Police's now notorious Special Demonstration Squad included Labour's now deputy leader Harriet Harman , former cabinet minister Peter Hain and Jack Straw, later home secretary.
article_snippet: a former officer, Peter Francis claimed a former officer, Peter Francis personally collected information on Diane Abbott, Jeremy Corbyn and the late Bernie Grant and said Special Branch collected intelligence on Ken Livingstone, Joan Ruddock, Dennis Skinner, and Tony Benn.
article_snippet: a former officer, Peter Francis, said he read files on 10 MPs during his 11 years working for the Metropolitan Police's now notorious Special Demonstration Squad were 'very extensive' a former officer, Peter Francis said, and included details of a subject's political beliefs, family relationships, personal background, education, and finances. 
article_snippet: Some contained details of 'personal and private matters', a former officer, Peter Francis said.
article_snippet: Mr Francis was an undercover officer between 1993 and 1997 in the now disbanded Special Demonstrations Squad.
article_snippet: Mr Francis infiltrated left wing groups and causes which were deemed to potentially pose a threat to national security.
article_snippet: Mr Francis told the BBC: 'When I was deployed undercover in the Special Demonstration Squad, any MP that I came across, such as on demonstrations, I would report back on demonstrations'. '
article_snippet: A former officer said A former officer read files on 10 MPs during A former officer 11 years working for the Special Demonstration Squad including Diane Abbott (left) and special branch collected intelligence on Dennis Skinner (right)