There are LOTS of laws against placing hidden cameras in places where a reasonable person would have an expectation of privacy. But even if no criminal laws were broken, an injured person can almost always sue for damages in civil court. This case is essentially a no-brainer. I would guess that the hotel's only possible defense is that it had no knowledge of the camera, which may in fact be true. It could be the work of a rogue employee, which raises important legal questions on which I predict the hotel would ultimately lose. An interesting factual question will be whether cameras are found in other rooms. We'll see.

Bruce