The Government Administration Council ordered a nationwide ban on growing, trafficking, selling and smoking opium, with registration and treatment for users. It created local prohibition committees and made provincial governments set dates for eradication. The government's 2000 white paper says the campaign largely eliminated opium within three years; the order named no cannabis rule, and hemp for fibre and seed continued.[1][2]
Listed for context. No score change is recorded for China here.
References
- 中华人民共和国 — 关于严禁鸦片烟毒的通令（1950年2月24日）第三条、第四条、第六条
- 国务院新闻办公室 — 中国的禁毒（2000年6月）前言：新中国成立后三年内禁绝鸦片烟毒archived
Checked. The date and the event were compared with a source that was read.