Chen Jing, a 25-year-old from Wuhan, has been studying at the City University of Hong Kong for a doctorate degree in the department of mathematics since September.

The report said Chen sealed 10,000 yuan cash in an envelope and put it to the mailbox of her tutor, an associate professor of the department, for the answers of an upcoming test on December 16.

She also sent an email to the professor on that day and sent another two in following days pressing for the answers, the report said.

However, the professor refused the deal and reported the case to the Hong Kong Independent Commission Against Corruption (ICAC) several days later, accompanied by the dean of the department.

On December 13, the ICAC arranged for the professor to meet Chen in a café, pretending to talk about the exchange. Chen was arrested when she copied the answers after confirming to the tutor it was she who sent the money and emails.