In 1950, the novelist and Communist Party of Australia member Frank Hardy launched a savage attack on Wren in his self-published 1950 novel Power Without Glory, in which Wren appears thinly disguised as a character called John West. The book also included characters based on other important Victorian and Australian political figures, including Victorian Premier Sir Thomas Bent and Prime Minister James Scullin, as well as Roman Catholic Archbishop Daniel Mannix.
Hardy was tried for criminal libel in 1951 because of the depiction in the novel of "West's" wife having an affair, but he was acquitted on the grounds that the work was, as he said, a mixture of fact and fiction. It was the last prosecution for criminal (as opposed to civil) libel in Victoria. The case attracted enormous publicity, coinciding as it did with the anti-Communist referendum and served mainly to give the novel and the negative portrayal of Wren greater prominence. In 1976, the novel was made into an Australian Broadcasting Corporation television series starring Martin Vaughan as West.
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