20世纪80年代初期,沙头角中英街上的香港警察与驻守在中英街的边防六支队在中英划界至香港主权移交前,两地警务人员相遇是不会进行任何语言或动作交流的,偶尔也只是点头示意。1997年7月1日零点,在中英街3号界碑处,头顶着鲜艳的五星红旗和紫荆花区旗,两名香港警察摘下了旧警徽,换上了新警徽。另一侧,两名边防官兵表情庄重,见证 In the early 1980s, Hong Kong police at Chung Ying Street in Sha Tau Kok and six frontier defense units stationed at Chung Ying Street did not conduct any language or movement until the two officers were met before the demarcation of China and Britain until the handover of sovereignty over Hong Kong Exchange, and occasionally nodded. At 0:00 on July 1, 1997, with the bright red five-star red flag and the redbud on the boundary marker at No. 3 Sino-British Street, two Hong Kong police officers removed the old badge and put on a new badge. On the other side, two border guards showed solemnity and witness