This isn't about cameras in public. It's clearly established that people can record/photograph the police in public as long as they aren't interfering with them.
This is about cameras in secure facilites, such as in a prison or jail. Those spaces should be subject to some form of public inspection but there's probably a good argument to not allow random cameras in.
This is about cameras in secure facilites, such as in a prison or jail. Those spaces should be subject to some form of public inspection but there's probably a good argument to not allow random cameras in.