That is a really hard topic to answer, but that is what I get for complaining. In situations like this, you can say what you want, but what you do when it actually happens is usually different. Having said that, most countries keep things such as new technologies and discoveries secret, so how would we know? They might have captured Pokemon right now O.O
For the sake of this topic: I can pretend that a media member with a camera happens to be there and got a photo or a video of the captured Buizel: Then; the masses of animal lovers and animal welfare groups would be up in arms about the treatment of Buizel, so at least it may not be dissected o.O But freeing it may be more difficult, or impossible by your self, seeing as your going up agents the government. If you could get a bunch of people to rally it might make the government fell a little pressure and fell in order to get you off their backs that it might be better to release it to a zoo or something.