A 3 August 1962 Economic and Social Council resolution ordered the issuance of the Commentary on the Single Convention on Narcotic Drugs. The legal commentary was created by the United Nations Secretary-General's staff (specifically, Adolf Lande, former Secretary of the Permanent Central Narcotics Board and Drug Supervisory Body), operating under a mandate to give "an interpretation of the provisions of the Convention in the light of the relevant conference proceedings and other material." The Commentary contains the Single Convention's legislative history and is an invaluable aid to interpreting the treaty.