云南：三道防线全面缉毒本刊记者罗维贵云南省各级公安机关针对当前毒品犯罪的严峻形势，把查缉毒品作为春季严打整治行动的重点，不断加大扫毒斗争力度，全面加强“三道防线”的查缉，自一季度以来，查破万克以上海洛因大案２０起，缴获海洛因共５８０余公斤，捕获境内外... Yunnan: Three Comprehensive Defense Against Drugs Reporter Luo Weigui Public security organs at all levels in Yunnan Province, in view of the current grim situation in drug offenses, regard checking narcotics as the focus of rectification actions in the spring and continue to intensify the fight against drug abuse and comprehensively strengthen the "three defense lines Since the first quarter, 20 cases of major heroin over 10,000 grams have been investigated and seized, and over 580 kilograms of heroin have been seized, capturing domestic and foreign ...