In Parliament, she condemned the Labor Party's centrist tendencies and opposed intervention from Canberra in New South Wales affairs. Her principal legislative achievement was an amendment to the Lunacy Act in 1944 to secure the release of Boyd Sinclair from a lunatic asylum, where he had been held since 1936, so that he could stand trial in a criminal court for the alleged murder of a Sydney taxi driver. A fierce critic of bureaucracy, she supported regrouping local councils, and lost her own council seat when Newtown was merged with the City of Sydney in 1949. Fowler was re-elected in 1947, but was defeated in the 1950 election by the "official" Labor candidate Arthur Greenup. In 1953, she was unsuccessful in an attempt to win election to Sydney City Council.
