Since 1977, the department has developed a precise analytical methodology and today has accumulated a considerable database. We analyse the official testimonials that are referred to us and respond to the first questions that arise after eye-witness accounts. We are concerned with facts and our approach is rigorously scientific. Most observations, whether seen from the ground or in the air, are of phenomena viewed at a distance. We try to establish if there is any correlation with identifiable objects, such as the planets, or the Moon, according to celestial maps.
Meteorological conditions can alter the perception of an object.
People in all good faith can be mislead by some kinds of lighting, for instance laser beams used at night-clubs. Most of the remaining eyewitness accounts lack the information necessary for a thorough investigation. The precise nature of the phenomena can then usually be provided in practically all these cases. The enquiries in these rare cases have confirmed the physical reality of certain phenomena which have been impossible to analyse. Such case studies therefore remain open.