Medical marijuana dispensaries in Fort Collins are shutting down to meet a deadline imposed by voters.
Police say they plan to begin inspecting the businesses Tuesday night to make sure the dispensaries are complying.
The owners of six marijuana businesses lost their appeal to a judge to block the ban from taking effect. The judge denied their request for a temporary restraining order, saying the businesses had failed to demonstrate that their constitutional rights were violated by the ban.
Colorado residents voted in 2000 to allow small uses of marijuana for medical purposes. But in 2010, lawmakers decided to allow cities and counties to decide whether to allow medical marijuana businesses within their boundaries.