4. Stresses that data collection, analysis and evaluation of the results of ongoing national and international policies are essential tools for further developing sound, evidence-based drug control strategies;
4. 强调为了进一步制定建立在证据基础上的完善的药物管制政策，数据收集和分析以及对现行国家和国际政策的结果进行评估是必要的手段；