在北京市东城区北池子大街85号，肤色，语言各不相同的外国人来此办理签证或者居留证件；中国公民来此办理因私事出国出镜护照或者证件。他们或是刚刚来自五大洲，或是即将奔赴世界各地，偶然而又必然的聚合、分离、使这座距天安门广场北侧不足一公里古老四合院，成为连接中国与世界的桥梁与纽带，成为展示中国外事警官严格执法风采的窗口。 No.85 Beiqizzi Street, Dongcheng District, Beijing, where foreigners of different color and language come here to apply for a visa or residence permit. Chinese citizens come here for personal passports or passports abroad. They have just come from five continents or are about to go all over the world, occasionally and inevitably converge and separate so that this ancient courtyard, less than one kilometer north of Tiananmen Square, becomes a bridge and link between China and the world and becomes a showcase Chinese foreign police officers strictly enforce the window of law enforcement style.