Security equipment exposition held in Beijing

An exhibitor introduces a laser infrared camera to visitors during a social public security equipment exposition in Beijing, capital of China, Nov. 3, 2010. Some 800 security equipment enterprises from home and abroad displayed their products and new technologies during the four-day exposition which sets more than 3,000 exhibition stands. (Xinhua/Chen Xiaogen)
Source:http://news.xinhuanet.com/english2010/photo/2010-11/04/c_13590642.htm