Royal Commission into the former Chelmsford Private Hospital and Mental Health Services in New South Wales 1988-1990

Royal Commission, better known as the Chelmsford Royal Commission, that investigated the use of deep-sleep therapy, a controversial treatment for psychiatric illnesses, between 1963 and 1979 at the Chelmsford Private Hospital in north west Sydney. The Commission was established after an investigation by the Sydney Morning Herald and was chaired by Commissioner Justice Slattery. It found that 24 people had died as a result of the treatment. Only four of the deaths had been investigated by a coroner. The report led to the treatment being banned and changes to the way coroners worked in New South Wales.