In 1997 when I was with the British U.F.O. Research association I had the following idea!
If astronomers can tell the atomic elements present within a star or planet with spectrographic analysis of the light wavelengths; why can't large groups of well funded ufologists do the same with U.F.O.
If a spectrograph was set up in an active flap area ufologists may get some ideas about composition and power.
I do not know what sizes these devices come in or how portable they are. I also don't have the resources or contacts to persue this avenue of investigation.
If any of you have some close University pals maybe you could find out something about this idea and let me know.
Anyway the idea is now out there, maybe one of you will be able to run with it.