The NYT has an article on the gaokao, the national college admissions exam in China:
Each year, cheating scandals become the talk of China. One common tactic was for students to give their identification cards to look-alikes hired to take the test; later, many provinces installed fingerprint scanners at test centers.
Do even the Chinese find that other Chinese rather look alike?
In 2008, three girls in Jiangsu Province were caught with mini-cameras inside their bras; their aim was to transmit images of the exam to people outside the classroom who would then provide answers. This year, the big scandal involved students in Huanggang, Hubei Province, famous in the past decade for churning out students with high scores; several dozen students were caught there last month for using small monitors costing nearly $2,500 that resembled erasers and that allowed the students to receive electronic messages with test answers.