A woman in Quanzhou, Fujian Province, was caught with a mouthful of evidence while taking the exam for a driver's license.
A test supervisor saw Huang writing on her test paper without looking up at the computer screen to see the questions.
When the supervisor approached Huang, she became nervous and a receiver fell out of her mouth.
She also had a tiny camera hooked up to her shirt along with a walkie-talkie and receiver.
Huang told police somebody provided the receiver to her and wanted 2,000 yuan (US$293) from her, after the exam.
(China Daily June 18, 2009)