Just finished reading the report below from Apple Daily (Chi ver).
http://hk.apple.nextmedia.com/templa...rt_id=15332482
According to the above Apple Daily report, China Government installed eavesdropping device in duo license plate Hong Kong cars. The eavesdropping device is hidden in the border crossing electronic device, the report also mentioned the effect range of the device is 20KM.
If you find yourself inside a duo license plate car, be careful what comes out of your mouth. Big brother is listening