I left out the fact that a large Space is craft orbiting the Earth and some rather advanced method used to declare their presence. So given that the authorities on Earth have sufficient proof of an Arrival, that's the starting point for their deliberations. NOT a
contactee!
There are still questions. What are the "advanced methods" to declare their presence, besides being seen in orbit by visual and radar frequencies?
A problem with "contactees" and "abductees" so far has been that they have no other evidence of contact - or alien presence at all, besides their word.
So you see an UFO in orbit, and a man on Earth is saying the UFO landed and he met and communicated with the ufonauts. What other evidence is needed?
First, did the UFO land at all? You may lack evidence for that the UFO landed.
Second, did the claimant contactee actually meet the ufonauts, rather than be somewhere else, distant or nearby?
And once you do establish that yes, you have a real contactee, what can you believe of what the contactee is telling?
Because the contactee may be lying about what the aliens showed and told him. Or the aliens may have been lying to the contactee.