Saint Lucia deposited its succession to the Single Convention on Narcotic Drugs of 1961 on 5 July 1991. The convention lists cannabis and cannabis resin among its controlled drugs and obliges its parties to limit their production, trade, possession and use to medical and scientific purposes.[1]
Listed for context. No score change is recorded for Saint Lucia here.
References
Checked. The date and the event were compared with a source that was read.