It's all about Benford's Law.
Benford's Law - How Mathematics Can Detect Fraud http://www.sms.cam.ac.uk/media/1164837
Benford's Law. Random Walk:The Visualization of Randomness by Daniel A. Becker
The Occupy Fiasco: The math behind the movement.
Benford's law - Wikipedia, the free encyclopedia
The visualization of randomness: beautiful work Random Walk by Daniel A. Becker
Benford's Law - the probability of the first digit of any number in a sample being 1 is about 30%
Fraud and Benford's Law.