Huang Changli is director of the Ningming County Aidian Border Police Station of the Guangxi Chongzuo Border Management Detachment. In his 14-year investigation career, he has repeatedly confronted drug dealers with guns, facing the blades and muzzles of drug dealers.

In April 2018, while investigating another case, Huang Changli hid alone in an extremely dirty abandoned panel house, surviving a long period of four days and four nights with limited food and a small amount of water. In the end, the police successfully solved this huge transnational armed drug trafficking case, and Huang ChangLI was also awarded a first-class personal merit.