“向后退”是民警先喊的29岁的朱天龙是上海市公安局黄浦分局打浦桥派出所民警,2009年从警,2014年12月31日晚,他和同事作为增援警力,在外滩陈毅广场执勤,引导人流,维护秩序。在接受采访时,朱天龙的嗓音仍带沙哑,而在拥挤踩踏发生前,他的喉咙是很响亮的,用他自己的形容是:“我一个人 ”Back “ is the first police to shout 29-year-old Zhu Tianlong is the Shanghai Public Security Bureau Huangpu Branch Dapuqiao police station police, police from 2009 on the evening of December 31, 2014, he and his colleagues as reinforcements in the police force, Bund Chen Yi square on duty, guide the flow of people, to maintain order. In an interview, Zhu Tianlong’s voice is still hoarse, and in the stampede before his throat is very loud, with his own description is: ”I am a person