It's alleged a Conservative minister in the 1960s, who was also a Devon MP, sold information about his colleagues and Parliament to communist spies.
Czech Security Service files are reported to reveal Raymond Mawby, who died in 1990, was in its pay for a decade.
Today in Parliament, the current MP for Totnes, Sarah Wollaston, called for a full inquiry.
More top news
Two hospitals in the region currently have ward closures and restrictions in place due to an outbreak of Norovirus.
Ever wondered how votes reach the mainland from the Isles of Scilly? It's an epic journey, including a night in the cells!
Nearly 95% of houses on sale in the South West aren't affordable for families looking to buy their first home, new research has shown.