CBC News has obtained a newly declassified copy of the RCMP Security Service's nearly 1,700-page intelligence dossier on the Dene Nation which confirms the Mounties had five paid informers "targeted specifically" against the organization as late as September 1978, in an extensive intelligence probe already five years old by then.
https://www.cbc.ca/news/indigenous/dene-nation-rcmp-security-service-files-9.7139036?cmp=rss

Why Mounties paid 5 informers to spy on Dene leaders: Inside a secret surveillance operation | CBC News
Dene leaders believe the RCMP Security Service in the 1970s broke into their office in Yellowknife, bugged it, stole and leaked material while aiming to discredit them via Operation Checkmate, a national disruption program.