DENVER (AP) — Denver authorities shut down 26 legal marijuana businesses Thursday and arrested 12 people suspected of illegal distribution of pot after a yearlong criminal investigation. Potential charges relate to marijuana sales exceeding limits set in state law, police said. Colorado allows people 21 and older to possess an ounce or less of marijuana under a measure approved by voters in 2012. The city department that regulates marijuana businesses issued the order to close the businesses based on the police investigation, spokesman Dan Rowland said. It marked the first time the city has issued an open-ended suspension to any...