一、基本案情被告人郭世臣，男，汉族，1976年11月1日出生于吉林省桦甸市，初中文化，无业。最高人民法院经复核确认：2005年8月初，被告人郭世臣在浙江省杭州市萧山区贩卖给蔡伟林(同案被告人，已判刑)甲基苯丙胺类毒品“麻古”3000粒(重280余克)。同年9月27日至10月5日，被告 First, the basic case The defendant Guo Shichen, male, Han nationality, born in November 1, 1976 in Huadian City, Jilin Province, junior high school culture, unemployed. Upon confirmation by the Supreme People’s Court, in early August 2005, the defendant, Guo Shichen, sold in the Xiaoshan District, Hangzhou City, Zhejiang Province, to Cai Weilin (same sentence as the defendant and sentenced) 3,000 tablets of Ma 麻, a methamphetamine drug (weighing over 280 grams) . The same year, September 27 to October 5, the defendant