More can always be said, but here's my previous answer to this question, plus some background on Chanel's wartime activities. In a nutshell: 1) the Churchill connexion is from third-hand testimony (something Chanel allegedly told her maid who reported it to Chanel's grand-niece; not impossible but still highly speculative), 2) as iffy her collaborationist activities were, she was not a Gestapo spy and was not responsible for the death of French people (or at least such serious accusations never emerged), and 3) the violent extrajudicial "purges" of the late 1944, early 1945 were not ordered by de Gaulle, and court-based épuration proceedings started when France had a running government again. She wisely chose to flee France for a decade, but even if she had been tried, she would have received a slap on the wrist, like many other low-level collaborators, or even been let go if she could find Resistance members to vouch for her (not very difficult for somebody like her; much worse people were acquitted and resumed their careers).