So, IR type cams come in domes.
My understanding is and using a bit of logic too is, city street cams are not supposed to peep inside businesses or on private property. In the same respect one should expect to get ones pic taken when in a public place, but one should expect privacy on private property and expect their pic to not be taken.
Therefore, cams should not take pics of a neighbors yard, which would invade their privacy. There's another problem too. A lot of cams have very good mics on them that can pic up what is going on inside a neighbors house very well.
It won't be long before everyone has cams all over their yards and houses and there is going to be a lot of abuse and problems that will have to be sorted out as people learn what they can and cannot do. The best thing to do is figure out a way to not point a cam in the direction of a neighbor, if you want to stay out of trouble. If a neighbor knew how well the mics work on some of these cams, they would be very concerned if they saw a cam pointed in their direction. They also have very good zooms.
Unfortunately, cams are going to change the world shortly, for better and for the worst. They make a great law enforcement tool, but do we really want to live with them watching our every move all the time? I don't.