It's also important to note that in the US, agencies like DNR (some states have different names for them) have extraordinary police powers that allow them to enter property if they suspect a violation. In similar situations, police officers would be required to get a warrant from a judge, but the DNR can just go in.
Department of natural resources. They monitor hunters, fishing, etc. They've been using deer mannequins for decades to catch poachers and they're getting more sophisticated now with internal heat sources in order to handle poachers with night vision.
Interesting. I am under the impression that regular hunting with night vision is banned. I can understand that it's no longer a sport if yo do enough stuff like that. Next would be armed drones.