From the Chinese press

Fraud exposes loophole in gaokao

Media reports say that some people have been running a racket to "help" students clear the college entrance examination (or gaokao) in Henan province. They hire college students to take the exam in place of real candidates in exchange for huge sums of money. More disturbing is the involvement of some insiders, such as invigilators and supervision officials in this racket, says an article in Beijing News. Excerpts:

According to the reports, racketeers say they can use "substitute" students to take the gaokao and supervision officials are paid handsomely to turn a blind eye to the practice. Most of the "substitute" students are "chosen" from among college students, who are paid according to their "performance".