The Uruguayan government has temporarily postponed the sale of marijuana in order to investigate the impact of the law. The decision came shortly after the publication of the annual report from the International Narcotics Control Board (INCB). The INCB monitors compliance with UN international agreements related to the cultivation, production and consumption of drugs. In its annual report, Uruguay and the U.S. states of Colorado and Washington were warned that their drug policies contravene international agreements and have a negative impact on the fight against drug trafficking. The report also noted that a high-level mission will be sent to Uruguay. In the past, President Tabaré Vázquez himself had opposed the legalization of marijuana. However, during the election campaign, he agreed to abide by the decision of his party and assured that he would implement the law if elected. Nevertheless, in an interview immediately after his election, he no longer ruled about the possibility of modifying the law. He expressed particular concern over the sale of marijuana in pharmacies.