Police officers browse comments from netizens on their micro-blogs in Beijing on Aug 18. Guangdong Provincial Public Security Department launched its official micro-blogs in February to update information, solicit advice and communicate with people. As of May, one of its micro-blogging groups has had more than 630,000 posts. On Aug 1, Beijing Municipal Public Security Bureau launched its offical micro-blogs.[Photo/Xinhua] 

The post of smiling faces says every police officer represents the whole public security bureau and every comment should be followed up. Guangdong Provincial Public Security Department launched its official micro-blogs in February to update information, solicit advice and communicate with people. As of May, one of its micro-blogging groups has had more than 630,000 posts. On Aug 1, Beijing Municipal Public Security Bureau launched its offical micro-blogs. [Photo/Xinhua]