Volunteers work to make the capital safer

Network's tipoffs have broken up drug gangs, tracked down terrorists

Beijing police detained an escaped prisoner suspected of organizing illegal immigration last summer, thanks to clues provided by an 80-year-old resident in the capital's Chaoyang district.

"I found the man had irregular work and rest and his home was often noisy at night," said Liu Shumin. "I pay attention to newcomers in our building, because I want the place I live in to be safe.