GEIPAN Case 2012-06-08256 — MAFFLIERS (95) 29.06.2012
GEIPAN case file documenting a single civilian witness's sub-twenty-second observation of a large, stationary white luminous object at low altitude over a field in Maffliers, Val-d'Oise, France, on 29 June 2012, classified D1 (unidentified) after gendarmerie investigation.
Brief
At approximately 06:06 on 29 June 2012, a walker in Maffliers (Val-d'Oise, France) was alerted by his dog to a gigantic white luminous object hovering silently at low altitude above a field at the forest edge. The observation lasted less than twenty seconds before the object tilted and departed rapidly and silently into cloud cover. GEIPAN — the UAP investigation unit of the French space agency CNES — assigned the case classification D1, meaning the witness account was of sufficient quality and detail to permit analysis, yet no conventional explanation was identified. Supporting materials in the file include gendarmerie procès-verbaux and technical notes.
Metadata
- Agency
- GEIPAN / CNES
- Release
- 2007-03-22
- Type
- PDF • .pdf
- Length
- 20 pages
- Classification
- UNCLASSIFIED (GEIPAN internal case classification: D1 — unidentified)
- Programs
- GEIPAN, GEPAN, SEPRA
- Tags
- white luminous object, gigantic, low altitude, stationary hover, silent, rapid departure, single witness, France, 2012, GEIPAN D1, forest edge field, dog alert
Key points
- Single civilian witness, alerted by dog, observed a gigantic stationary white luminous object at low altitude above a field bordering a forest in Maffliers (Val-d'Oise).
- Observation duration was less than twenty seconds, limiting data acquisition but not witness confidence in the object's characteristics.
- The object's departure was described as rapid, silent, and directed toward cloud cover, preceded by a tilt in attitude.
- GEIPAN assigned classification D1 — the agency's designation for cases that remain unexplained after thorough investigation despite adequate witness testimony.
- Case file includes gendarmerie procès-verbaux (official sworn statements) and technical notes, indicating formal law-enforcement involvement in the inquiry.
- The investigation was conducted by GEIPAN, the successor body to GEPAN and SEPRA, operating under CNES — France's national space agency.
Most interesting
- GEIPAN's D1 classification is the highest-priority designation in its four-tier system, reserved for cases that resist explanation even after rigorous analysis — placing this incident among GEIPAN's formally unresolved cases.
- The witness's dog functioned as an involuntary alert system, which is a recurring motif in close-proximity UAP reports and is sometimes treated as corroborating behavioral evidence of an anomalous stimulus.
- The object's silent high-speed departure — from stationary to rapid transit in under twenty seconds — rules out conventional fixed-wing aircraft, which require audible thrust and runway or airspeed for altitude gain.
- Maffliers sits in Val-d'Oise, roughly 25 km north of Paris, in an area beneath multiple controlled flight paths into Charles de Gaulle Airport — making aviation misidentification a natural first hypothesis that GEIPAN evidently could not sustain.
- GEIPAN has published its case database openly since 2007; this 2012 file is part of that public transparency effort, which is unusual among national government UAP investigation bodies worldwide.