There are two key measures to guarantee the quality of foreign experts in China, said Xia Bing, director of the State Administration of Foreign Experts Affairs' department of cultural and educational experts.

A blacklist system was introduced in 2010, and there are nine circumstances deemed as strong violations of employers' regulations that may see someone put on the list, he said.

The most serious is committing a crime, and should this happen the offender's name will be announced to the public.