The National Archives of Australia (naa.gov.au) holds the official record of Australian UAP investigation. Key facts: The RAAF investigated 400+ UAP reports between 1950-1959 and over 1,300 reports between 1960-1980. By the 1970s sightings were so frequent the RAAF used standard pro forma questionnaires. Australia-US RAAF-USAF intelligence sharing on UAP was active throughout the Cold War. The RAAF ceased official UAP investigations in 1994 citing only 3% of reports remaining unexplained. When Australia’s military stopped taking UAP reports (around 2000), a search for their accumulated files found only ONE surviving file: “Report on UFOs/Strange Occurrences and Phenomena in Woomera.” All other UAP files had been “lost or destroyed” — mirroring the Roswell RAAF record destruction. Despite this, researchers have found that over 10,000 UAP-related files in 130+ folders exist within the NAA’s 60 million file collection — but only approximately 10% of NAA files are searchable through the online RecordSearch system. Thousands of Department of Supply files related to UAP incidents — including the Westall 1966 case — remain unopened. The Valentich official investigation file was declared lost and only rediscovered in 2012 through the online NAA index.