November 8, 2012, was the opening day of the 18th CCP Congress. On November 7, Beijing implemented the highest level of security to guard the event. Boxun, a Chinese news website based in North America, posted a group of pictures and videos showing the level of security in Beijing before the opening of the 18th Congress: A security guard with a professional red armband (wearing a professional inspection work permit) was placed on patrol in every cabin of every subway train; buses passing Tiananmen Square had their windows taped shut; there were more security personnel of all kinds than tourists and pedestrians in Tiananmen Square; A Boxun volunteer shot a video of a woman who looked like a petitioner being seized by two Tiananmen Square policemen and dragged into a police car; armed police and special police with weapons usually patrolled outside, in the open, but instead stayed inside their cars checking on people; selling scissors was forbidden in Beijing.
Source: Boxun, November 7, 2012
http://boxun.com/news/gb/china/2012/11/201211080248.shtml#.UJtBJsVWq2o