Science is inherently atheistic

[Angrboda]

Again, I really don't see anything more difficult than dealing with any other sort of dangerous creature that we don't understand. For those creatures in the wild, we seldom are capable of doing struct controls. All we can do, especially at first, is describe, catalog behaviors, and make a few hypotheses. Through more observation, some of the hypotheses may be shown wrong.

We do NOT have to measure under an assumption of natural laws for the creature itself. But, for example, if we can photograph it, that implies some sort of interaction with light. If we can hear it, that implies some sort of interaction with pressure waves in the air. Even if we don't understand the nature of those interactions, that is, at least, an 'in' to understanding what the creature is and how it functions. If we can record a transformation into a bat, we might be able to do a frame by frame analysis to see whether mass is conserved and, if not, what happens to is.

All said, this would lead to some *amazing* insights into physics.

The point is that natural laws are *descriptive*, not *prescriptive*. We find out natural laws by looking at phenomena and finding descriptions of what we observe, looking for patterns all the time. A natural law is a type of general description of patterns that we see. To say there is no 'natural law' operative simply means there are no patterns that we can discern and/or no descriptions that are useful for understanding.

Although I don't agree, I respect your rationale. Photographing a vampire doesn't demonstrate a vampire until you can prove it's a vampire.  If not, it could be your friend in a mask playing a practical joke on you.  On the day of your "scientific presentation" he shows up in his vampire outfit.  You would have to have a "hands on" approach.  If you didn't get the blood sucked out of you, then maybe you could continue.

Or if you think it's in a cave, what if it was in bat form.  How are you going to know which bat to examine?  Go fondle all of them until one tries to kill you?

How do you know it didn't leave the cave altogether, even if by walking through a wall?  Maybe it's in a coffin in a hidden chamber and has decided to take a nap for 1000 years.  Are you going to wait for it? Aren't vampires also supposed to be immune from reflection, so the camera would be a waste of time anyway.

If it's supernatural, then we can't assume that any of it has to be subject to natural laws.

Your objections could apply equally as well to gravity. We don't know what gravity is, but we do know it's effects and the order displayed. If your objections suggest that we don't know what we're talking about with respect to gravity, I have to suspect there is something wonky with your ideas on this.