National Institute on Drug Abuse (NIDA) has a government granted monopoly on the production of cannabis for medical research purposes. In the past, the institute has refused to supply marijuana to researchers who had obtained all other necessary federal permits. Medical marijuana researchers and activists claim that NIDA, which is not supposed to be a regulatory organization, does not have the authority to effectively regulate who does and doesn't get to do research with medical marijuana. Jag Davies of the Multidisciplinary Association for Psychedelic Studies (MAPS) writes in MAPS Bulletin: