From Wired News: Keeping a Who's-Naughty List:

London police are planning to register children who exhibit criminal potential in an effort to prevent them from developing into full-fledged lawbreakers. Kids who tag buildings with graffiti, skip school, or even talk back to adults run the risk of being entered into a database program that will be used to monitor their behavior as they grow up, according to police sources.

One more reason to support Privacy International.