 The Committee's work under Hughes was led to the enactment of legislation for compulsory blood alcohol tests for all adult road crash casualties, and in 1976 to random breath test legislation.In 1979, Hughes was appointed founding chairman of the Sir Robert Menzies National Foundation.He held the position until 1988 when the Foundation merged with the Sir Robert Menzies Memorial Trust, whereupon he held the position of Deputy Chairman of the merged entity until 1996.