A fight against time. Student Pang lost his ID card right before his examination. A policeman immediately helped him to print a temporary ID card certification, which only took three minutes. (Photo provided by Jiangbei District Public Security Sub-bureau.)

The thanks. After finishing the examination, Student Pang sent a box of water to the policeman, he said: “I would not have known what to do without your help. Thank you very much!” (Photo provided by Jiangbei District Public Security Sub-bureau.)