Dior remained influential within the NSM in London. On 31 July 1965, she was involved in an arson committed by 6 NSM members against the Ilford and Lea Bridge Road synagogues. Dior was also the official WUNS representative in France by that year. On 4 June 1965, she was convicted in absentia to a 4-month jail sentence for having displayed neo-Nazi leaflets on the walls of the British embassy in Paris on a previous occasion. Dior then returned to France, where she was arrested in Nice on 4 October 1966 and held into custody for the Paris event.