'Assault troop' formed for 2014 Youth Olympic Games in Nanjing (4/4)

Members of a special “assault troop” formed by municipal public security bureau of Nanjing, Jiangsu province join a flag-giving ceremony held on July 2, 2014. The troop is divided into several squads with each one having 20 members. Those squads are arranged in all criminal investigations departments of the city. [Photo: China News Service/ Yang Bo]