DEA Hit With Another Lawsuit From Scientists Seeking to Research Cannabis DEA Hit With Another Lawsuit From Scientists Seeking to Research Cannabis The time is nigh for the DEA to cooperate in ensuring that medical marijuana research can move forward. Finally. On December 3, 2020, MAPS (the Multidisciplinary Association for Psychedelic Studies) issued a press release regarding a lawsuit filed against the DEA and the Attorney General to “compel issuance of licenses to manufacture marijuana for clinical trials and potential FDA approval.” We have written about MAPS and its 35 years of advocacy and engagement with DEA before, and we are big fans of the nonprofit.