Record 230 · Department of Defence / Joint Intelligence Organisation
Scientific and Intelligence Aspects of the UFO Problem
Royal Australian Air Force / Department of Defence · Australia
Ledger illustration of the record — not a scan of the original paper. — Night Ledger illustration of the file
The paper examines global UFO reporting trends, the methodologies of major investigations (including Project Blue Book), and evaluates potential scientific explanations ranging from atmospheric phenomena to advanced aircraft or misidentifications. It concludes that the vast majority of sightings have prosaic explanations and that no credible evidence supports extraterrestrial visitation or technological breakthroughs of intelligence value to Australia. The assessment notes the low percentage of truly unexplained cases and recommends against dedicating significant defence resources to routine UFO investigation, aligning with the later 1990s RAAF policy shift to cease active collection.
Public file: National Archives of Australia / war.gov release

