在“高原明珠”洱海的源头,滇藏公路旁,有一个汉、白、彝、藏、纳西等十三个民族聚居的集镇——洱源县三营镇。因为地域宽广、人口众多、交通便利、经济活跃,这里的社会治安工作历来是个“热区”。作为加强公安工作的措施之一,县公安局选派了一位得力干将在此镇守,他就是被人们誉为“警营铁汉子”的三营派出所所长、全国优秀人民警察张润生。 At the source of Erhai Lake and the “Pearl of the Plateau”, along the Yunnan-Tibet Highway, there is a town of Sanying, such as Han, Bai, Yi, Tibet and Naxi, and the Sanying Town of Eryuan County. Because of the vast territory, large population, convenient transportation and economic activity, the work of public security here has always been a “hot zone.” As one of the measures to step up public security work, the county Public Security Bureau has selected a capable cadre to guard him. He is the director of the camp of the Three Camps and the outstanding police of the People’s Republic of China Zhang Runsheng, whom he has been hailed as the “police battalion”.