To ask the Secretary of State for Foreign and Commonwealth Affairs what assessment his Department has made of which countries are the main source of (a) opium and (b) cocaine; and if he will make a statement. 
The United Nations Office on Drugs and Crime (UNODC) conducts annual surveys into the level of drug production in the main source countries. These confirm that the main source of opium continues to be Afghanistan, producing around 76 per cent. of the world"s supply and around 90 per cent. of the heroin which reaches the UK. The main source of cocaine is Colombia, which produces around 72 per cent. of the world"s supply.