In the future robots will handle all of our dirty work for us, and may even work in law enforcement so human cops don't get hurt and because people believe they'll do the job more efficiently.
But practical and efficient robots don't really inspire fear in people, and when a bot's job is to break up a riot it should have an intimidating profile.
So that's probably why the engineers from China's National Defense University went with the Dalek look instead of the C-3PO while designing the “intelligent security robot” they call “AnBot”.
The AnBot looks more like a rolling ATM than a security bot, and it's missing the Dalek's awesome eyestalk, manipulator arm and gunstick, so how is anyone supposed to take this thing seriously?
Maybe if they program it to say "exterminate!" in Chinese over and over again somebody will pay attention...