Another source was Peter Wright, a former assistant director of MI5. The British Government tried to prevent the publication of Wright's own "Spycatcher" (1987), which covered much the same ground as Pincher's "Their trade is treachery". Wright had published in Australia, and the Australian court case ran on for years with no success. In the event, nothing was proved against Hollis, who was the main target of "Their trade is treachery". Later British Prime Ministers stated that Hollis was a loyal servant of the Crown, and that a great injustice had been done to him by the Pincher and Wright books.