China’s ‘Substitute Test Taker’ Industry

China Geeks translates an article from Southern Weekend about the “substitute test takers” industry in China.  Apparently, there is a sizable market for students who want to pay someone to take their TOEFL, IELTS or other standardized exams for them.

Is anyone from China aware of this and able to tell us about their experiences?  Does this exist in other countries as well?