If there wasn't video proof of this, I would have to assume that it's just some urban legend my racist uncle would talk about.  Check out these Asian pickpockets rob their victims using chopsticks.

Live Leak

Man, somethings you just can't make up.  I guess as far a pickpocketing goes, it's a pretty good idea.  Chopsticks are long and light and if you're good enough with them, they can grab pretty much anything.

Source: Fark