Graeme Douglas Johnstone (17 May 1945 – 16 November 2012) was the state coroner of Victoria, Australia from 1994 to 2007.
In 2005, he conducted a coronial inquest into the death of Prime Minister Harold Holt and found that he had accidentally drowned near Cheviot Beach in Victoria.
This disappointed advocates of conspiracy theories, such as the hypothesis that he was kidnapped by a Chinese submarine.
[3] Upon his retirement, Victorian Attorney-General Rob Hulls praised Johnstone for his outstanding commitment to investigating deaths in custody.
Johnstone will be coming out of retirement in February 2008 for the conclusion of the inquest into the disappearance and death of Louise and Charmian Faulkner who went missing in 1980.