The Bolivian government denounced the 1961 Single Convention on Narcotic Drugs on June 29, 2011, indicating its intention to re-accede with a reservation allowing for the traditional use of the coca leaf. The decision was triggered by Bolivia’s need to balance its obligations under the international drug control system with its constitutional and other international legal commitments. The move follows the rejection of Bolivia’s proposal to amend the Single Convention by deleting the obligation to abolish coca leaf chewing earlier this year. The International Narcotics Control Board (INCB) called on countries to oppose Bolivia’s decision. This intervention is extremely unhelpful, and arguably an abuse of the Board’s mandate. The International Drug Policy Consortium (IDPC) supports the difficult decision taken by the Morales administration.