Female urban management officers, better known in China as chengguan, equipped with roller blades, patrol on duty at Tianfu Square in downtown Chengdu, Southwest China's Sichuan province, Aug 1, 2011. The local urban administrative and law enforcement bureau has recruited a batch of female chengguan and allowed them to carry out their duties wearing roller blades, in order to adopt a more moderate approach to law enforcement. [Photo/CFP]