Medical marijuana laws are changing. Effective July 1, 2016, anyone who owns a dispensary will need to require patients to register. And if a patient will not register voluntarily, the dispensary will have to do it for them. Not only that, but medical marijuana patients as part of this registry will also have to disclose vehicle titles and license plates. And it doesn't stop there. All law enforcement officers will have access to medical marijuana patients registration numbers and names via license plates. There is great potential for misuse of this information under the guise of DUI enforcement.