politics - New group graft-investigators to Shanghai

The central government has sent a new group of investigators to Shanghai to work on the corruption case that has brought down amongst others Shanghai's party secretary Chen Liangyu, write domestic media.
The new group of inspectors is not going to take on a new investigation, but are merely sent to replace the first group, who needs a bit of a brake. It indicates that the central government is not yet prepared to let Shanghai off the hook.