For years we've had security cameras in city streets, shops, malls and on our main roads, recording our movements. They have become part of everyday life and most of us don't even notice them.
Police have used speed cameras to great effect since the 1990s and many argue we could do with more of them, given the terrible consequences of speed on our roads.
The latest police tactic has, predictably, concerned civil libertarians, who believe there should have been more public consultation. But everyone knows it is illegal to use cellphones in cars, that it's dangerous to take hands off the wheel or eat while driving.
These might be considered minor transgressions by many people but they can be every bit as dangerous as speeding.
Good on the police for coming up with new tactics to make our roads safer. Safe and law-abiding drivers have nothing to fear.