HALLOWELL, Maine — A medical marijuana business in Hallowell has been forced to shut down, after the owner failed to disclose a decades-old misdemeanor conviction on his application. “It’s an odd situation,” said Derek Wilson. “It’s very strange.” Wilson said he was in disbelief, standing inside his empty medical marijuana shop on Friday. “Even at this very moment I’m losing possible revenue, so it hurts,” he said. The Cannabis Healing Center was forced to close this week after two years in downtown Hallowell.