The Michigan Supreme Court today will consider a case that affects the 131,000 medical marijuana patients in Michigan. The case centers on where patients can grow their marijuana.

Larry Steven King grew his medical marijuana plants in a locked dog kennel at his home in Owosso. King has a medical marijuana card. But police charged him with growing marijuana illegally. The kennel did not have roof.

Prosecutors say that means it did not meet the state requirement for an ‘enclosed, locked facility’ .

Attorney John Minock represents Larry King. Minock says the problem is with the Michigan Medical Marihuana Act, which he says is vague on what exactly an ‘enclosed, locked facility’ actually entails.

“Larry was trying to comply with the law, as he understood it," says Minock, "The law on this area is not really clear.” The case split the lower courts. The trial court dismissed the charges, finding that the marijuana had been stored properly. But the Court of Appeals sided with prosecutors that the kennel did not meet the law’s requirements.