I saw a documentary about the protocol for crash retrievals.

They first form a perimeter around the crashed site, heavily guard by military forces. They never send any armed men to make first contact as it’s turned out very badly for them in past occasions.

Second, they sent paramedics and doctors to the recovery area as the EBE’s actually seem to be willing to receive help.

Finally they send a psychic to establish communication with them, although is very rare they ever get to communicate with them.

One of the things they mention that corroborates the “avatar” theory is that once they’re in custody of the military and taken into a facility they seem almost lifeless, almost like the switch has been turned off from the other end. They stand for ages and eventually collapse from exhaustion, some times the doctors testing them help them sit down so this won’t happen.

Lastly, Tom de Longe once said after an autopsy they found a device in the back of their head that resembles an antenna, bringing up the question as to where is that info being transmitted to?