From the Huffington Post
The U.S. Supreme Court handed medical marijuana patients and advocates a resounding victory on Monday, refusing to hear a case brought by San Diego County, which has long chafed at implementing statewide medical marijuana laws.
The state of California, in an effort to systematize the 1996 voter-approved initiative, required localities to implement identification card programs for patients with doctor approval in 2004. Such ID cards are required to enter medical marijuana shops in California and can be shown to police officers who find patients in possession of marijuana.
San Diego County, however, argued that the federal ban on marijuana trumps the state law, meaning they are not required to follow the state law. The county filed suit in 2006. Both the San Diego Superior Court and the Fourth District Court of Appeals rejected the argument, which was followed by the California Supreme Court’s refusal to review the case in 2008.