Certainly "No-Kill".
While I'd like to pretend I understand the argument that is often used, that we need a body on a slab to prove it to science so we can protect them, I find both aspects of that line of thinking to be fake.
(1) "I" have no need to prove anything to anyone. Scientific acceptance doesn't change the fact NOW, that they do exist.
(2) "They" are doing so well on their own now as it is, that we can't even PROVE they exist, that it's an intellectually faux arguement that we need to protect them.
This is an old discussion I'm sure we'll have many more times, long before the creature is ever fully accepted to exist.