From the Chinese press

Chengguan should not use violence

Urban management officers, or chengguan, beat up a man in Cangnan county, Zhejiang province, recently for taking pictures of their violent crackdown on vendors. The urban management officers, in turn, were beaten up by some angry onlookers. And in Jiangsu province, people have criticized an urban management officer for buying a Google Glass to "gather evidence" against suspects. These two incidents, among others, highlight the extent to which chengguan have become unpopular, says an article in Zhengzhou Evening News. Excerpts:

Recent years have seen an increase in the use of violence by chengguan against people, especially vendors to "keep cities clean". Sometimes the public has reacted strongly - even fought back - against chengguan's actions. Perhaps this is why chengguan have been criticized, and demonized.