Because China's criminal procedure law stipulates that if a criminal sentenced to fixed-term imprisonment has less than three months left before being handed over for execution, the detention center will execute it on his behalf. During this period, an appeal can be filed. Mr Tsang appealed on the following grounds:
1. The defendant doesn't want to go to prison to serve his sentence.
The defendant expects to get a lighter sentence.
3. Lawyers did not play their due role in the implementation of leniency system.