If a third party is paid by the police to film you then they are an arm of the government too. Otherwise yes some cameras are already there and may be pointing

If a third party is paid by the police to film you then they are an arm of the government too. Otherwise yes some cameras are already there and may be pointing at your home, but that doesn’t mean it is OK for the police to stick a poll cam up and spy on you. A police poll cam could pan and zoom as needed to get the questionable probable cause. So it is way more dangerous than a ring bell next door (ring bells don’t pick up much really)