The Tokyo District Court found in favour of the Sumo Association on April 19, 2010, with the judge saying, "It has been proven that urine samples which showed positive results for marijuana were theirs, and it is unthinkable that they were mixed up with samples of others... the association's decision to dismiss them was adequate given that the use of illegal drugs had become a serious social problem." The court's ruling was upheld by the Tokyo High Court on November 18, 2010.