Beijing: Foreigners face visa scrutiny
Beijing is to begin a clamp down on foreigners illegally entering, residing or working in the national capital to improve social security, according to a local authority announcement on Monday.
The campaign is scheduled to run from May 15 to the end of August, said a spokesman with the Beijing Municipal Public Security Bureau.
Be sure to have all your documentation in order (passport, visa, working permit, police registration, etc)
More info here: