Usually pointing at private land or with signs if they can move. There's also number plate recognition on major roads and services. I don't really get the fuss,

Usually pointing at private land or with signs if they can move. There's also number plate recognition on major roads and services. I don't really get the fuss, it's more private than having a security guard watch you. And they work at preventing crime and tracking people who commit them. I'm surprised people from other countries aren't more turned off by our speeding cameras. I don't like them.