R.C.M.P. Security Bulletins

From its inception in 1919-1920 the RCMP (initially the Royal Northwest Mounted Police) security service compiled periodic reports on "subversive" activity in Canada, which were circulated to the Prime Minister and Cabinet. Through use of Canada's Access to Information legislation Gregory S. Kealey and Reg Whitaker acquired copies of the extant Bulletins, which are now held by the Canadian Security Intelligence Service. Eight volumes of Bulletins have been published, covering the years 1919 to 1945.