Yu Tong, immigration management police officer working at the Baiyun International Airport in Guangzhou, Guangdong province

Through systematically studying samples of certificates of more than 200 countries and regions, I have gradually gained experience in telling fake certificates. I am able to guard the country and the people at the airport, and witness and participate in the high-level opening-up and high-quality development of China. I feel deeply honored and am aware that I shoulder a great responsibility.