Trans-en-Provence trace investigation

Case

Overview

Witness reported landed object; French GEPAN investigated soil/vegetation samples.

Investigative phases

Witness report; laboratory analyses; GEPAN report

Reported phenomena

Ground traces and vegetation effects

Public evidence status

French government GEIPAN/GEPAN case documentation available

Alternative explanations / caveats

Trace effects not unique to anomalous craft; sample collection and causation debated

Next research tasks

Retrieve full French report and laboratory methods; evaluate alternative contamination sources

Last reviewed

2026-10-29

Assessment

Event date

1981-01-08

Source category

Official French technical case file

Original data accessibility

Published report; samples not broadly available

Witness / instrument basis

Witness + physical traces

Corroboration limitations

Trace effects not unique to anomalous craft; sample collection and causation debated

Extraordinary claim assessment

Open / contested

Current status

Open / contested

Priority research task

Retrieve full French report and laboratory methods; evaluate alternative contamination sources

Lead source ID

SRC-106

Last reviewed

2026-10-29

Evidence (1)

• Primary record / original reporting: Trans-en-Provence trace investigation Claim unverified
  CE-129 · 1981-01-08 · Official French technical case file
  Gaps: Trace effects not unique to anomalous craft; sample collection and causation debated

Documents gathered (1 line of evidence)

0 readable here · 1 with a linked primary record · 0 still need a document · All cases on the evidence map

• Primary record / original reporting: Trans-en-Provence trace investigation Primary record linked
  CE-129 · GEIPAN official case database

On the timeline (1)

• 1981-01-08 Trans-en-Provence trace investigation Disputed
  Open / contested