Sure, but I don't know what that has to do with the issue. If you go into town and announce that you saw "Bigfoot" but were not quick enough to get your camera out to take a picture you have nothing but your own statement. People will either think you are a liar or hallucinating or mistaken OR someone who believes in Bigfoot might well believe you. It doesn't matter. It still isn't evidence that does any subsequent investigator any good at all.
If you did get a picture than the picture becomes the evidence and, as you indicated above, would be subjected to tests to determine if it were legitimate or not.
If you did get a picture than the picture becomes the evidence and, as you indicated above, would be subjected to tests to determine if it were legitimate or not.