The shooting on the second floor of the Great Hall of the People took place at 1966, which led to the nationwide gun ban in China. 1996, 10, 1, China officially implemented the gun control law, stipulating that citizens are not allowed to illegally possess guns and ammunition, otherwise they will be investigated for criminal responsibility.
Related to the filming of 1966 Great Hall of the People:
/program/zoujinkexue/2006 07 07/ 102469 _ 1 . shtml