The Chief Investigator, Transport Safety (the Chief Investigator) is the independent Government agency responsible for investigation of safety-related trends and incidents in the rail, bus and marine industries in the State of Victoria, Australia. The position was created as a statutory office by the Transport Integration Act 2010 and commenced on 1 July 2010. The investigator is one of three independent transport safety agencies in Australia along with the Australian Transport Safety Bureau, a Commonwealth agency, and the Office of the Transport Safety Investigations in New South Wales.